Earthquake · Reviewed by USGS

M4.7 earthquake 85 km W of Petrolia, CA

A magnitude 4.7 earthquake struck 85 km W of Petrolia, CA at Aug 29, 2026, 02:41 UTC, at a depth of 10 km. The epicentre was 101 km (63 mi) WSW of Eureka. 102 people reported feeling it to USGS.

Details

Magnitude	4.7 mw
Time	Aug 29, 2026, 02:41 UTC
Depth	10.0 km
Coordinates	40.450, -125.272
Felt reports	102
Tsunami flag	Tsunami information issued. Follow official guidance.
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	52 km / 32 mi	depth 20 km	Oct 25, 05:49 UTC
1.9	5 km SSW of Humboldt Hill, CA	93 km / 58 mi	depth 5 km	Oct 25, 00:23 UTC
1.7	53 km WSW of Petrolia, CA	47 km / 29 mi	depth 4 km	Oct 24, 20:17 UTC
2.3	16 km SSW of Ferndale, CA	77 km / 48 mi	depth 13 km	Oct 24, 07:54 UTC
1.7	26 km W of Petrolia, CA	59 km / 37 mi	depth 16 km	Oct 24, 07:44 UTC
3.4	70 km W of Ferndale, CA	24 km / 15 mi	depth 10 km	Oct 23, 05:38 UTC
1.7	16 km SE of Petrolia, CA	99 km / 61 mi	depth 11 km	Oct 22, 14:38 UTC
1.5	15 km SE of Petrolia, CA	99 km / 61 mi	depth 14 km	Oct 22, 14:37 UTC
2.1	30 km WSW of Petrolia, CA	59 km / 37 mi	depth 17 km	Oct 22, 12:59 UTC
1.5	14 km SE of Petrolia, CA	97 km / 60 mi	depth 13 km	Oct 22, 03:12 UTC
1.1	14 km SE of Petrolia, CA	96 km / 60 mi	depth 13 km	Oct 22, 02:31 UTC
1.8	13 km SE of Petrolia, CA	96 km / 60 mi	depth 13 km	Oct 22, 02:12 UTC
1.7	14 km SE of Petrolia, CA	97 km / 60 mi	depth 14 km	Oct 22, 01:43 UTC
3.3	14 km SE of Petrolia, CA	96 km / 60 mi	depth 11 km	Oct 22, 01:43 UTC
3.1	80 km WNW of Ferndale, CA	49 km / 31 mi	depth 5 km	Oct 20, 07:39 UTC
1.9	23 km W of Petrolia, CA	63 km / 39 mi	depth 10 km	Oct 19, 16:13 UTC
2.6	18 km WSW of Petrolia, CA	69 km / 43 mi	depth 7 km	Oct 17, 21:43 UTC
1.8	29 km W of Petrolia, CA	58 km / 36 mi	depth 17 km	Oct 15, 19:52 UTC
2.9	12 km W of Petrolia, CA	73 km / 45 mi	depth 19 km	Oct 15, 17:25 UTC
1.8	12 km SW of Rio Dell, CA	89 km / 56 mi	depth 21 km	Oct 15, 10:45 UTC
2.9	75 km W of Petrolia, CA	13 km / 8 mi	depth 4 km	Oct 15, 10:37 UTC
2.7	22 km W of Petrolia, CA	64 km / 40 mi	depth 9 km	Oct 13, 10:15 UTC
2.8	44 km WNW of Petrolia, CA	42 km / 26 mi	depth 25 km	Oct 13, 10:07 UTC
1.8	20 km W of Petrolia, CA	66 km / 41 mi	depth 11 km	Oct 13, 07:18 UTC
3.1	20 km W of Petrolia, CA	65 km / 41 mi	depth 10 km	Oct 12, 15:21 UTC

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