Earthquake · Reviewed by USGS

M4.8 earthquake 97 km W of Petrolia, CA

A magnitude 4.8 earthquake struck 97 km W of Petrolia, CA at Sep 29, 2026, 11:36 UTC, at a depth of 10 km. The epicentre was 114 km (71 mi) WSW of Eureka. 20 people reported feeling it to USGS.

Details

Magnitude	4.8 mw
Time	Sep 29, 2026, 11:36 UTC
Depth	10.0 km
Coordinates	40.422, -125.418
Felt reports	20
Tsunami flag	None
Source	USGS event page

Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Nearby

Nearest cities

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
Magnitude	Location	Distance	Depth	Time
2.1	34 km W of Petrolia, CA	63 km / 39 mi	depth 20 km	Oct 25, 05:49 UTC
1.7	53 km WSW of Petrolia, CA	55 km / 34 mi	depth 4 km	Oct 24, 20:17 UTC
2.3	16 km SSW of Ferndale, CA	89 km / 55 mi	depth 13 km	Oct 24, 07:54 UTC
1.7	26 km W of Petrolia, CA	71 km / 44 mi	depth 16 km	Oct 24, 07:44 UTC
3.4	70 km W of Ferndale, CA	35 km / 22 mi	depth 10 km	Oct 23, 05:38 UTC
2.1	30 km WSW of Petrolia, CA	70 km / 43 mi	depth 17 km	Oct 22, 12:59 UTC
3.1	80 km WNW of Ferndale, CA	56 km / 35 mi	depth 5 km	Oct 20, 07:39 UTC
1.9	23 km W of Petrolia, CA	74 km / 46 mi	depth 10 km	Oct 19, 16:13 UTC
2.6	18 km WSW of Petrolia, CA	81 km / 50 mi	depth 7 km	Oct 17, 21:43 UTC
1.8	29 km W of Petrolia, CA	69 km / 43 mi	depth 17 km	Oct 15, 19:52 UTC
2.9	12 km W of Petrolia, CA	85 km / 53 mi	depth 19 km	Oct 15, 17:25 UTC
2.9	75 km W of Petrolia, CA	22 km / 14 mi	depth 4 km	Oct 15, 10:37 UTC
2.7	22 km W of Petrolia, CA	75 km / 47 mi	depth 9 km	Oct 13, 10:15 UTC
2.8	44 km WNW of Petrolia, CA	55 km / 34 mi	depth 25 km	Oct 13, 10:07 UTC
1.8	20 km W of Petrolia, CA	78 km / 48 mi	depth 11 km	Oct 13, 07:18 UTC
3.1	20 km W of Petrolia, CA	77 km / 48 mi	depth 10 km	Oct 12, 15:21 UTC
2.1	23 km W of Petrolia, CA	75 km / 47 mi	depth 11 km	Oct 12, 13:04 UTC
2.5	24 km W of Petrolia, CA	74 km / 46 mi	depth 10 km	Oct 12, 12:13 UTC
3.1	22 km W of Petrolia, CA	75 km / 47 mi	depth 10 km	Oct 12, 11:45 UTC
2.4	33 km W of Petrolia, CA	66 km / 41 mi	depth 6 km	Oct 12, 09:12 UTC
2.1	23 km W of Petrolia, CA	74 km / 46 mi	depth 10 km	Oct 10, 16:18 UTC
2.3	37 km W of Petrolia, CA	60 km / 37 mi	depth 28 km	Oct 8, 13:45 UTC
1.6	26 km WSW of Petrolia, CA	78 km / 49 mi	depth 19 km	Oct 7, 19:28 UTC
1.3	15 km W of Petrolia, CA	82 km / 51 mi	depth 9 km	Oct 5, 14:14 UTC
1.9	15 km W of Petrolia, CA	82 km / 51 mi	depth 8 km	Oct 5, 09:57 UTC

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