Live record · USGSReports quakes after they happen. Not an alert system.

Earthquake · Reviewed by USGS

M1.7 earthquake 31 km W of Petrolia, CA

A magnitude 1.7 earthquake struck 31 km W of Petrolia, CA at Sep 28, 2026, 12:06 UTC, at a depth of 16 km. The epicentre was 71 km (44 mi) SW of Eureka.

Details

Magnitude1.7 md
TimeSep 28, 2026, 12:06 UTC
Depth16.1 km
Coordinates40.281, -124.651
Felt reports0
Tsunami flagNone
SourceUSGS event page
Fig. 1The epicentre and other earthquakes within 100 km, since the day before

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
MagnitudeLocationDistanceDepthTime
2.019 km SSE of Blue Lake, CA83 km / 51 midepth 23 km
2.134 km W of Petrolia, CA4 km / 3 midepth 20 km
1.95 km SSW of Humboldt Hill, CA58 km / 36 midepth 5 km
1.753 km WSW of Petrolia, CA23 km / 15 midepth 4 km
2.316 km SSW of Ferndale, CA31 km / 19 midepth 13 km
1.726 km W of Petrolia, CA8 km / 5 midepth 16 km
3.470 km W of Ferndale, CA53 km / 33 midepth 10 km
1.716 km SE of Petrolia, CA44 km / 27 midepth 11 km
1.515 km SE of Petrolia, CA43 km / 27 midepth 14 km
2.130 km WSW of Petrolia, CA3 km / 2 midepth 17 km
1.514 km SE of Petrolia, CA42 km / 26 midepth 13 km
1.114 km SE of Petrolia, CA41 km / 26 midepth 13 km
1.813 km SE of Petrolia, CA41 km / 25 midepth 13 km
1.714 km SE of Petrolia, CA42 km / 26 midepth 14 km
3.314 km SE of Petrolia, CA41 km / 26 midepth 11 km
1.622 km NE of Rockport, CA95 km / 59 midepth 6 km
3.180 km WNW of Ferndale, CA78 km / 48 midepth 5 km
1.923 km W of Petrolia, CA8 km / 5 midepth 10 km
2.618 km WSW of Petrolia, CA14 km / 9 midepth 7 km
1.829 km W of Petrolia, CA3 km / 2 midepth 17 km
2.912 km W of Petrolia, CA20 km / 13 midepth 19 km
1.812 km SW of Rio Dell, CA41 km / 25 midepth 21 km
2.975 km W of Petrolia, CA45 km / 28 midepth 4 km
1.736 km NE of Redway, CA92 km / 57 midepth 21 km
3.023 km NE of Hydesville, CA78 km / 48 midepth 5 km

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.