Access Data
Special Data Sets
Useful Test Events for Earthquake Early Warning and General Seismological Algorithm Testing
- Southern California Historic Earthquakes
- Northern California Historic Earthquakes
- Known Problematic Events
- Large Magnitude Teleseisms
- Pacific Northwest Historic Earthquakes
- Deep Teleseisms
- Pacific Northwest Anomalous Signals
- Simulated Waveforms
- Southern California Calibration Pulses
- Northern California Calibration Pulses
- Synthesized Earthquake Sequences
The tables below shows a community-derived list of historic U.S. earthquakes, scenario earthquakes, and anomalous events that can be used for testing EEW as well as general seismological algorithms.
The last column indicates the directory in which each individual event's files can be found. Available files consist of the event tankfile (indicated by same prefix as directory name and ".tnk" suffix), and channel configuration file (indicated by same prefix as directory name and ".dat" suffix). Subfolders contain mseed files corresponding to each station-channel where channels include HH* and HN*. For the California, Oregon, and Washington earthquakes, waveform files begin two minutes before main shock origin time and are a total of seven minutes long.
This archive is not comprehensive and is frequently evolving. Use at your own risk.
Historic Earthquakes, Southern California
| event ID | event name / closest city | event parameters (origin time UTC, location, depth, magnitude) | directory |
|---|---|---|---|
| 9108652 | Hector Mine | 1999/10/16 09:46:44.127 34.5940 -116.2710 0.02 km M7.10 |
19991016_hectormine |
| 9818433 | Yorba Linda | 2002/09/03 07:08:51.870 33.9173 -117.7758 12.92 km M4.75 |
20020903_yorbalinda |
| 13935988 | Big Bear | 2003/02/22 12:19:10.580 34.3098 -116.848 1.23 km M4.99 |
20030222_bigbear |
| 9983429 | Wheeler Ridge | 2004/02/14 12:43:11.380 35.0385 -119.1315 11.66 km M4.34 |
20040214_wheelerridge |
| 14065544 | Offshore: 42 mi SE of San Clemente Island | 2004/06/15 22:28:48.160 32.3287 -117.9175 10.0 km M4.98 |
20040615_offshore1 |
| 14116972 | Fontana swarm | 2005/01/06 14:35:27.670 34.1250 -117.4387 4.15 km M4.42 |
20050106_fontanaswarm |
| 14138080 | 13.4 mi W of Wheeler Ridge | 2005/04/16 19:18:13.550 35.0272 -119.1783 10.3 km M4.59 |
20050416_wheelerridge2 |
| 14151344 | 5.6 mi ESE of Anza | 2005/06/12 15:41:46.540 33.5288 -116.5727 14.2 km M5.2 |
20050612_anza |
| 14178184 | 0.8 mi SSE of Obsidian Butte | 2005/08/31 22:47:45.640 33.1648 -115.6357 4.0 km M4.59 |
20050831_obsidianbutte |
| 14179736 | 0.7 mi S of Obsidian Butte | 2005/09/02 01:27:19.810 33.1598 -115.6370 9.8 km M5.11 |
20050902_obsidianbutte2 |
| 14383980 | Chino Hills | 2008/07/29 18:42:15.710 33.9530 -117.7613 14.7 km M5.39 |
20080729_chinohills |
| 14607652 | El-Mayor Cucapah | 2010/04/04 22:40:42.360 32.2862 -115.2953 10.0 km M7.2 |
20100404_El-MayorCucapah |
| 10736069 | Collins Valley | 2010/07/07 23:53:33.530 33.4205 -116.4887 14.0 km M5.43 |
20100707_CollinsValley |
| 15296281 | Anza | 2013/03/11 16:56:06.040 33.5025 -116.4572 13.1 km M4.7 |
20130311_anza2 |
| 15350729 | Offshore Isla Vista | 2013/05/29 14:38:03.27 34.413 -119.926 8.0 km M4.80 |
20130529_offshoreislavista |
| 15481673 | La Habra | 2014/03/29 04:09:42.31 33.932 -117.917 4.8 km M5.10 |
20140329_lahabra |
| 15520985 | Big Bear | 2014/07/05 16:59:34.07 34.280 -117.028 8.7 km M4.58 |
20140705_bigbear2 |
| 39281440 | Barstow | 2020/01/24 19:03:34.24 35.097 -116.970 3.1 km M4.6 |
20200125_barstow |
| 39126079 | Anza | 2020/04/04 01:53:18.92 33.490 -116.507 10.4 km M4.9 |
20200403_anza3 |
| 39493944 | Lone Pine | 2020/06/24 10:40:49.24 36.447 -117.975 4.7 km M5.8 |
20200624_lone_pine2 |
Historic Earthquakes, Northern California
| event ID | event name/ closest city | event parameters (origin time UTC, location, magnitude) | filename |
|---|---|---|---|
| 9966449 | San Simeon | 2003/12/22 19:15:56.240 35.7005 -121.1005 8.7 km M6.50 |
20031222_sansimeon |
| 51146343 | Adobe Hills Swarm (east of Mono Lake) | 2004/09/18 23:02:17.750 38.0095 -118.6785 5.49 km M5.4 |
20040918_adobehills_swarm |
| 30228270 | Parkfield | 2004/09/28 17:15:24.250 35.8182 -120.3660 8.58 km M5.97 |
20040928_parkfield |
| 40204628 | Alum Rock | 2007/10/31 03:04:54.810 37.4335 -121.7743 10.11 km M5.45 |
20071031_alumrock |
| 71338066 | Offshore Ferndale | 2010/01/10 00:27:39.32 40.65200 -124.69250 29.33 km M6.50 |
20100110_offshoreferndale |
| 71863625 | SAF near King City | 2012/10/21 06:55:09.51 36.30967 -120.85600 9.180km M5.29 |
20121021_safnearkingcity |
| 71996906 | Canyondam | 2013/05/24 03:47:08.18 40.1918 -121.0595 9.69 km M5.69 |
20130524_canyondam
|
| 72145230 | Offshore Ferndale | 2014/01/23 04:10:41.19 40.4110 -125.3412 23.8 km M4.63 |
20140123_offshoreferndale2 |
| 72157621 | San Simeon | 2014/02/06 19:42:21.03 35.5260 -121.2710 3.04 km M4.13 |
20140206_sansimeon2 |
| 72182046 | Offshore Eureka | 2014/03/10 05:18:13.43 40.82867 -125.13383 16.640 km M6.80 |
20140310_offshoreeureka |
| 72282711 | South Napa | 2014/08/24 10:20:44.06 38.21550 -122.31167 11.25 km M6.02 |
20140824_southnapa |
Known problematic teleseismic and regional events
| event id # | event location | NEIC event parameters (origin time UTC, location, depth, magnitude) | start time of waveform files | filename |
|---|---|---|---|---|
| NN ev id: 00495477 | 37 km SSW of Caliente, Nevada | 2015-05-22 18:47:42 37.292 -114.655 4.0 km M5.3 |
2015-05-2218:46:00 | 20150522_tele_caliente |
| SCSN ev id: 37249669 | 99 km NNW of Chirikof Island, Alaska | 2015-05-2907:00:09 56.594 -156.430 72.6 km M6.7 |
2015-05-2907:03:00 | 20150529_tele_alaska |
| SCSN ev id: 15245759 | Sonora, Mexico | 2009-08-0317:59:56 29.039 -112.903 10.0 km M6.9 |
2009-08-0317:59:00 | 20090803_tele_sonora |
| SCSN ev id: 37047036 | Gulf of California, Baja California, Mexico | 2012-04-12 07:15:48 28.696 -113.104 13.0 km M7.0 |
20120412_tele_baja | |
| 37103220 | off the west coast of Baja California | 2012-12-14 10:36:01 31.095 -119.660 13.0 km M6.3 |
2012-12-14 10:34:00 | 20121214_tele_baja2 |
| 12330867 | Nevada | 2008-02-21 14:16:02 41.153 -114.867 6.7 km M6.0 |
2008-02-21 14:15:00 | 20080221_tele_nevada |
| 37205293 | 50 km WNW of Lordsburg, New Mexico | 2014-06-29 04:59:35 32.582 -109.168 6.4 km M5.3 |
2014-06-29 04:58:00 | 20140629_tele_newmexico |
| 37176453 | 246 km SSW of Avalon, California | 2014-03-05 02:24:23 31.323 -119.409 7.2 km M4.6 |
2014-03-05 02:23:00 | 20140305_tele_avalon |
| 10781413 | Utah | 2010-08-18 12:52:31 37.640 -113.220 6.4 km M3.6 |
2010-08-18 12:51:00 |
20100818_tele_utah |
Teleseismic events (2000-2015) that are largest magnitude and within 10,000 km of center of southern California
| event id | event location | NEIC event parameters (origin time UTC, location, depth, magnitude) | start time of waveform files | download |
|---|---|---|---|---|
| 36948327 | near the east coast of Honshu, Japan | 2011-03-11 05:46:24 38.297 142.373 29.0 km M9.0 |
2011-03-11 05:55:00 | 20110311_tele_japan |
| 28101759 | Offshore Bio-Bio, Chile | 2010-02-27 06:34:11 -36.122 -72.898 22.9 km M8.8 |
2010-02-27 06:44:00 | 20100227_tele_chile |
| 13993864 | Hokkaido, Japan region | 2003-09-25 19:50:06 41.815 143.910 27.0 km M8.3 |
2003-09-25 19:58:00 | 20030925_tele_hokkaido |
| 10083910 | Kuril Islands | 2006-11-15 11:14:13 46.592 153.266 10.0 km M8.3 |
2006-11-15 11:22:00 | 20061115_tele_kuril |
| 37142283 | Sea of Okhotsk | 2013-05-24 05:44:48 54.892 153.221 598.1 km M8.3 |
2013-05-24 05:51:00 | 20130524_tele_seaokhotsk3 |
| 37184149 | 94 km NW of Iquique, Chile | 2014-04-01 23:46:47 -19.610 -70.769 25.0 km M8.2 |
2014-04-01 23:55:00 | 20140401_tele_chile2 |
| 10084186 | east of the Kuril Islands | 2007-01-13 04:23:21 46.243 154.524 10.0 km M8.1 |
2007-01-13 04:31:00 |
20070113_tele_kuril2 |
| 12290527 | near the coast of central Peru | 2007-08-15 23:40:57 -13.386 -76.603 39.0 km M8.0 |
2007-08-15 23:49:00 | 20070815_tele_peru |
| 17917759 | Samoa Islands region | 2009-09-29 17:48:10 -15.489 -172.095 18.0 km M8.1 |
2009-09-29 17:57:00 | 20090929_tele_samoa |
| 37106252 | 76 km west of Lata, Solomon Islands | 2013-02-06 01:12:25 -10.799 165.114 24.0 km M8.0 |
2013-02-06 01:21:00 | 20130206_tele_solomonislands |
Teleseismic events (2000-2015) that are deep and within 10,000 km of center of southern California
| SCSN event id# |
event location | NEIC event parameters (origin time UTC, location, depth, magnitude) | start time of waveform files | filename |
|---|---|---|---|---|
| 14153808 | Tarapaca, Chile | 2005-06-13 22:44:33 -19.987 -69.197 115.6 km M7.8 |
2005-06-13 22:53:00 | 20050613_tele_tarapecachile |
| 37204965 | 19 km southeast of Little Sitkin Island, Alaska | 2014-06-23 20:53:09 51.849 178.735 109.0 km M7.9 |
2014-06-23 20:58:00 | 20140623_tele_sitkinalaska |
| 12328359 | south of the Fiji Islands | 2007-12-09 07:28:20 -25.996 -177.514 152.5 km M7.8 |
2007-12-09 07:38:00 | 20071209_tele_southfiji2 |
| 37249685 | 189 km WNW of Chichi-shima, Japan | 2015-05-30 11:23:02 27.839 140.493 664.0 km M7.8 |
2015-05-30 11:31:00 | 20150530_tele_chichijapan |
| 9539753 | Volcano Islands, Japan region | 2000-03-28 11:00:22 22.338 143.730 126.5 km M7.6 |
2000-03-28 11:10:00 | 20000328_tele_volcanojapan |
| 9811437 | south of Fiji Islands | 2002-08-19 11:08:24 -23.884 178.495 675.4 km M7.7 |
2002-08-19 11:17:00 | 20020819_tele_southfiji |
| 12335627 | Sea of Okhotsk | 2008-07-05 02:12:04 53.882 152.886 632.8 km M7.7 |
2008-07-05 02:18:00 | 20080705_tele_seaokhotsk |
| 37087236 | Sea of Okhotsk | 2012-08-14 02:59:38 49.800 145.064 583.2 km M7.7 |
2012-08-14 03:06:00 | 20120814_tele_seaokhotsk2 |
| 9145034 | Volcano Islands, Japan region | 2000-03-28 11:00:22 22.338 143.730 126.5 km M7.6 |
2000-03-28 11:10:00
|
20000328_tele_volcanojapan |
| 13911524 | northwest of the Kuril Islands | 2002-11-17 04:53:53 47.824 146.209 459.1 km M7.3 |
2002-11-17 05:01:00 | 20021117_tele_kurilislands |
| 14187824 | northern Peru | 2005-09-26 01:55:37 -5.678 -76.398 115.0 km M7.5 |
2005-09-26 02:02:00 | 20050926_tele_northperu |
Calibration Pulses - Southern California
| event name | type | UTC time | duration | affected channels | download |
|---|---|---|---|---|---|
| box1 | Calibration test | 2013/08/1615:54:00.000 | 10 minutes total; 2 minutes pre-event |
CE.35078.HN%.10 CE.35110.HN%.10 CE.35342.HN%.10 CE.36014,HN%.10 |
20130816_box1 |
| box2 | Calibration test | 2014/09/0815:40:00.000 | 10 minutes total; 2 minutes pre-event | CE.35078 CE.35342 CE.36014 |
20140908_box2 |
| recenter- ing | Recentering pulses | 2014/11/0613:26:00.000 | 45 mins total | GATR, SLR, SRI, SWS | 20141106_recentering |
Calibration Pulses - Northern California
| Event name | Type | UTC time | duration | affected channels | download |
|---|---|---|---|---|---|
| cal1 | calibration test | 2014/10/1022:33:00 | 6 hours | KCC HH* | 20141010_cal1 |
| cal2 | calibration test | 2014/10/0421:23:00 | 5 hours | BKS HH* | 20141004_cal2 |
| cal3 | calibration test | 2014/10/0403:53:00 | 5 hours | SAO HH* | 20141004_cal3 |
| cal4 | calibration test | 2014/09/1917:54:00 | 5 hours | BKS HH* | 20140919_cal4 |
| cal5 | calibration test | 2014/09/1822:59:00 | 5 hours | CMB HH* | 20140918_cal5 |
| cal6 | calibration test | 2014/08/1221:43:00 | 6 hours | HOPS HH* | 20140812_cal6 |
| cal7 | calibration test | 2014/08/1123:38:00 | 5 hours | YBH HH* | 20140811_cal7 |
| cal8 | calibration test | 2014/08/0900:42:00 | 2 hours | BKS HH* | 20140809_cal8 |
| rec_01 | recentering pulse | 2014/02/1019:15:00 | 14 mins | BRIB HH* | 20140210_rec_01 |
| rec_02 | recentering pulse | 2014/02/1321:50:00 |
14 mins | BRIB HH* | 20140213_rec_02 |
| rec_03 | recentering pulse | 2014/07/2421:54:00 | 14 mins | BRIB HH* | 20140724_rec_03 |
| rec_04 | recentering pulse | 2014/09/0515:50:00 | 14 mins | CVS HH* | 20140905_rec_04 |
| rec_05 | recentering pulse | 2014/09/1018:11:00 | 20 mins | CVS HH* | 20140910_rec_05 |
| rec_06 | recentering pulse | 2014/10/0623:10:00 | 14 mins | HAST HH* | 20141006_rec_06 |
| rec_08 | recentering pulse | 2014/07/2823:16:00 | 14 mins | JCC HH* | |
| rec_10 | recentering pulse | 2014/10/1621:00:00 | 14 mins | MNRC HH* | 20141016_rec_10 |
| rec_12 | recentering pulse | 2014/03/1917:42:00 | 14 mins | SUTB HH* | 20140319_rec_12 |
| rec_13 | recentering pulse | 2014/07/2423:47:00 | 20 mins | SUTB HH* | 20140724_rec_13 |
| rec_14 | recentering pulse | 2014/09/0318:55:00 | 10 mins | SUTB HH* | 20140903_rec_14 |
| rec_16 | recentering pulse | 2014/10/0819:25:00 | 10 mins | TRAM HH* | 20141008_rec_16 |
| rec_17 | recentering pulse | 2014/06/2320:49:00 | 10 mins | TSCN HH* | 20140623_rec_17 |
| rec_18 | recentering pulse | 2014/07/2423:24:00 | 10 mins | VAK HH* | 20140724_rec_18 |
| pge_anom | PGE network anomaly | 2015/07/01 00:52:00 |
28 mins | PG.ARD, PG.CSD, PG.DCD, PG.LMD, PG.LSD, PG.MLD, PG.PBD, PG.PSD, PG.VPD, PG.WRD |
20150701_pge |
Historic Earthquakes, Pacific Northwest (Oregon, Washington)
| event name/ closest city | event parameters (origin time UTC, location, depth, magnitude) | download |
|---|---|---|
| Nisqually, WA | 2001/02/2818:54:32.00 47.149 -122.727 51.9km M6.8 |
20010228_nisqually |
| Offshore Oregon | 2004/07/1216:45:00.73 44.329 -124.490 29.0 km M4.9 |
20040712_offshore_oregon1 |
| Offshore Northen California | 2005/06/15 02:50:00 41.292 -125.953 16.0 km M7.2 |
20050615_gorda_plate |
| Cowlitz Chimneys, WA | 2006/10/0802:48:26.65 46.85 -121.6 3.8km M4.7 |
20061008_cowlitz_chimneys |
| Maupin, OR | 2008/07/1418:45:55 45.127 -120.950 20.9 km M4.2 |
20080714_maupin |
| Puget Sound Region, WA | 2008/07/3105:02:43.12 48.154 -122.747 55.9km M4.0 |
20080731_puget_sound |
| Offshore Oregon | 2010/07/2816:12:05.61 43.756 -125.815 10.0 km M5.2 |
20100728_offshore_oregon2 |
| Mt. St. Helens area, WA | 2011/02/1418:35:25.74 46.282 -122.212 5.6km M3.8 |
20110214_mt_st_helens |
| Vancouver Island, Canada | 2011/09/0919:41:34.15 49.535 -126.893 22.0km M6.4 |
20110909_vancouver_island |
| Near Leavenworth, WA | 2013/06/2702:45:35.90 47.824 -120.689 7.5 km M4.3 |
20130627_leavenworth |
| near Vancouver Island, Canada | 2013/08/0413:22:27.64 49.661 -127.429 10.0 km M5.5 |
20130804_off_vancouver_island1 |
| Near Vancouver Island, WA | 2014/04/2403:10:15 49.6388 -127.7316 10.0 km M6.5 |
20140424_off_vancouver_island2 |
Pacfic Northwest Anomalous Signals
| event name | type | UTC time | duration | affected channels | download |
|---|---|---|---|---|---|
| 20161013_anomalous1 | Noisy and dead strong-motion channel(s) | 2016/10/13 14:55:20.802 | 7 minutes | BABR ENZ BSFP ENZ | 20161013_anomalous1 |
| 20161018_anomalous2 | Noisy and dead strong-motion channel(s) | 2016/10/18 22:25:42.448 | 7 minutes | BABR ENZ BSFP ENZ | 20161018_anomalous2 |
| 20161019_anomalous3 | Noisy and dead strong-motion channel(s) | 2016/10/19 20:55:16.235 | 7 minutes | BABR ENZ BSFP ENZ | 20161019_anomalous3 |
| 20161024_anomalous4 | Noisy and dead strong-motion channel(s) | 2016/10/24 21:12:22.590 | 7 minutes | BABR ENZ REED HNZ | 20161024_anomalous4 |
| 20161026_anomalous5 | Noisy and dead strong-motion channel(s) | 2016/10/26 16:44:24.647 | 7 minutes | BABR ENZ BSFP ENZ | 20161026_anomalous5 |
| 20161026_anomalous6 | Noisy and dead strong-motion channel(s) | 2016/10/26 21:17:09.129 | 7 minutes | BABR ENZ BSFP ENZ | 20161026_anomalous6 |
| 20161031_anomalous7 | Noisy and dead strong-motion channel(s) | 2016/10/31 09:58:45.307 | 7 minutes | BABR ENZ REED HNZ | 20161031_anomalous7 |
| 20161031_anomalous8 | Noisy and dead strong-motion channel(s) | 2016/10/31 14:53:46.477 | 7 minutes | BABR ENZ BSFP ENZ | 20161031_anomalous8 |
| 20161005_anomalous9 | Anomalous signal due to waveform processing restart | 2016/10/05 17:32:04.925 | 7 minutes | BEVT ENZ SMNR ENZ BABE ENZ PAYL ENZ | 20161005_anomalous9 |
| 20170101_anomalous10 | Anomalous signal due to leap second correction | 2017/01/01 09:58:45.307 | 7 minutes | JEDS ENZ TBPA ENZ |
20170101_anomalous10 |
Simulated Waveforms
| event name | simulation event parameters | remarks | download |
|---|---|---|---|
| Hayward-hs+hn_gp14.3_hypoF | 37.5143 -121.9176 Depth 8.17 km M7.1 Type: strike-slip Hayward Fault Rupture length: 84 km |
Excluding Northern California GPS stations currently. | Hayward-hs+hn_gp14.3_hypoF |
| Hayward-hs+hn_gp14.3_hypoO_no-shal-weak | 37.8221-122.1772 Depth 8.96 km M7.1 Type: strike-slip Hayward Fault Rupture length: 84 km |
Excluding Northern California GPS stations currently. | Hayward-hs+hn_gp14.3_hypoO_no-shal-weak |
| Hayward-hs+hn_r04_hypoO | 37.8059-122.1799 Depth 7.80 km M7.1 Type: strike-slip Hayward Fault Rupture length: 84 km |
Excluding Northern California GPS stations currently. | Hayward-hs+hn_r04_hypoO |
| ShakeOut-gp2010v3.2 | 33.4063-115.7841 Depth 9.75 km M7.8 Type: strike-slip San Andreas Fault Rupture length: 304 km |
Excluding Northern California GPS stations currently Artificial network code: ‘SM’ Velocity (HH%) waveform simulations; acceleration (HN%) and downsampled displacement (LY%; 1Hz) time series derived through differentiation and integration; Broadband records available. | ShakeOut-gp2010v3.2 |
| ShakeOut-v1.2.0 | 33.3459-115.7077 Depth 7.31 km M7.8 Type: strike-slip San Andreas Fault Rupture length: 304 km |
Excluding Northern California GPS stations currently Artificial network code: ‘SM’ Velocity (HH%) waveform simulations; acceleration (HN%) and downsampled displacement (LY%; 1Hz) time series derived through differentiation and integration; Broadband records available. | ShakeOut-v1.2.0 |
Synthesized Earthquake Sequences
| event description | 1st event parameters (origin time, location, depth, magnitude) | 2nd event parameters (origin time, location, depth, magnitude) | download |
|---|---|---|---|
| Ridgecrest foreshock/mainshock or mainshock/aftershock pairs | |||
| M7.1 with 60s earlier M6.4 foreshock | +60s (2019/07/06 03:19:53), 35.700/-117.504, 10.5 km, M6.4 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38443183_m060s ridgecrest_metadata |
| M7.1 with 180s later M6.4 aftershock | +60s (2019/07/06 03:19:53), 35.770/-117.599, 8.0 km, M7.1 | +240s (2019/07/06 03:22:53), 35.700/-117.504, 10.5 km, M6.4 | sim_ci38443183_p180s ridgecrest_metadata |
| M7.1 with 60s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m060s ridgecrest_metadata |
| M7.1 with 30s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +90s (2019/07/06 03:20:23), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m030s ridgecrest_metadata |
| M7.1 with 10s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +70s (2019/07/06 03:20:03), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m010s ridgecrest_metadata |
| M7.1 with 15s later M5.4 aftershock | +60s (2019/07/06 03:19:53), 35.770/-117.599, 8.0 km, M7.1 | +75s (2019/07/06 03:20:08), 35.760/-117.575, 7.0 km, M5.4 | sim_ci38450263_p015s ridgecrest_metadata |
| M7.1 with 60s earlier M4.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M4.4 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_scaled_to_M44_m060s ridgecrest_metadata |
| M7.1 with 30s earlier M4.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M4.4 | +90s (2019/07/06 03:20:23), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_scaled_to_M44_m030s ridgecrest_metadata |
| M7.1 with 10s earlier M4.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M4.4 | +70s (2019/07/06 03:20:03), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_scaled_to_M44_m010s ridgecrest_metadata |
| Ridgecrest and El Monte (Los Angeles) pairs | |||
| M7.1 Ridgecrest with 60s earlier M4.5 El Monte | +60s (2019/07/06 03:19:53), 34.038/-118.080, 16.9 km, M4.5 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38695658_m060s ridgecrest_elmonte_metadata |
| M7.1 Ridgecrest with 30s earlier M4.5 El Monte | +60s (2019/07/06 03:19:53), 34.038/-118.080, 16.9 km, M4.5 | +90s (2019/07/06 03:20:23), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38695658_m030s ridgecrest_elmonte_metadata |
| M7.1 Ridgecrest with 60s earlier M6.0 El Monte | +60s (2019/07/06 03:19:53), 34.038/-118.080, 16.9 km, M6.0 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38695658_scaled_to_M6_m060s ridgecrest_elmonte_metadata |
| M7.1 Ridgecrest with 30s earlier M6.0 El Monte | +60s (2019/07/06 03:19:53), 34.038/-118.080, 16.9 km, M6.0 | +90s (2019/07/06 03:20:23), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38695658_scaled_to_M6_m030s ridgecrest_elmonte_metadata |
| M7.1 Ridgecrest with 30s later M6.0 El Monte | +60s (2019/07/06 03:19:53), 35.770/-117.599, 8.0 km, M7.1 | +90s (2019/07/06 03:20:23), 34.038/-118.080, 16.9 km, M6.0 | sim_ci38695658_scaled_to_M6_p030s ridgecrest_elmonte_metadata |
| M7.1 Ridgecrest with 60s later M6.0 El Monte | +60s (2019/07/06 03:19:53), 35.770/-117.599, 8.0 km, M7.1 | +120s (2019/07/06 03:20:53), 34.038/-118.080, 16.9 km, M6.0 | sim_ci38695658_scaled_to_M6_p060s ridgecrest_elmonte_metadata |
| 'Offshore' Ridgecrest foreshock/mainshock and mainshock/aftershock pairs | |||
| 50km 'Offshore' M7.1 Ridgecrest with 60s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m060s 50km_offshore_metadata |
| 50km 'Offshore' M7.1 Ridgecrest with 30s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +90s (2019/07/06 03:20:23), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m030s 50km_offshore_metadata |
| 50km 'Offshore' M7.1 Ridgecrest with 120s later M5.4 aftershock | +60s (2019/07/06 03:19:53), 35.770/-117.599, 8.0 km, M7.1 | +180s (2019/07/06 03:21:53), 35.760/-117.575, 7.0 km, M5.4 | sim_ci38450263_p120s 50km_offshore_metadata |
| 75km 'Offshore' M7.1 Ridgecrest with 60s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m060s 75km_offshore_metadata |
| 75km 'Offshore' M7.1 Ridgecrest with 30s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +90s (2019/07/06 03:20:23), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m030s 75km_offshore_metadata |
| 100km 'Offshore' M7.1 Ridgecrest with 60s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m060s 100km_offshore_metadata |
| 100km 'Offshore' M7.1 Ridgecrest with 30s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +90s (2019/07/06 03:20:23), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m030s 100km_offshore_metadata |
| 125km 'Offshore' M7.1 Ridgecrest with 60s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +120s (2019/07/06 03:20:53), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m060s 125km_offshore_metadata |
| 125km 'Offshore' M7.1 Ridgecrest with 30s earlier M5.4 foreshock | +60s (2019/07/06 03:19:53), 35.760/-117.575, 7.0 km, M5.4 | +90s (2019/07/06 03:20:23), 35.770/-117.599, 8.0 km, M7.1 | sim_ci38450263_m030s 125km_offshore_metadata |
| 125km 'Offshore' M7.1 Ridgecrest with 120s later M5.4 aftershock | +60s (2019/07/06 03:19:53), 35.770/-117.599, 8.0 km, M7.1 | +180s (2019/07/06 03:21:53), 35.760/-117.575, 7.0 km, M5.4 | sim_ci38450263_p120s 125km_offshore_metadata |
