Recent Earthquakes in California and Nevada

== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California

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Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 2:11:52 AM (PST) on Sunday, February 15, 2026.
The magnitude 1.4 event occurred 4 km (3 miles) SE of Ontario, CA.
The hypocentral depth is 4 km ( 2 miles).

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Magnitude	1.4 - local magnitude (Ml)
Time	Sunday, February 15, 2026 at 2:11:52 AM (PST) Sunday, February 15, 2026 at 10:11:52 (UTC)
Distance from	Ontario, CA - 4 km (3 miles) SE (144 degrees) Chino, CA - 8 km (5 miles) E (82 degrees) Mira Loma, CA - 9 km (5 miles) WNW (293 degrees) Upland, CA - 9 km (6 miles) SSE (152 degrees) Montclair, CA - 10 km (6 miles) SE (127 degrees)
Coordinates	34 deg. 1.4 min. N (34.023N), 117 deg. 36.1 min. W (117.601W)
Depth	3.99 km (2.50 miles)
Quality	Good
Location Quality Parameters	Nst=79, Nph=144, Dmin=1.3 km, Rmss=0.16 sec, Erho=0.12 km, Erzz=0.25 km, Gp=21 degrees
Event ID#	ci41398472
Additional Information	Map

For more information, see https://earthquake.usgs.gov

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