Earthquake · Reviewed by USGS

M4.2 earthquake 5 km SW of Isleton, CA

A magnitude 4.2 earthquake struck 5 km SW of Isleton, CA at Oct 18, 2023, 16:29 UTC, at a depth of 8 km. The epicentre was 16 km (10 mi) NNE of Oakley. 7,899 people reported feeling it to USGS.

Details

Magnitude	4.2 mw
Time	Oct 18, 2023, 16:29 UTC
Depth	8.5 km
Coordinates	38.127, -121.643
Felt reports	7899
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
1.0	6 km E of Oakland, CA	59 km / 37 mi	depth 3 km	Oct 26, 06:49 UTC
1.3	5 km SSW of Pittsburg, CA	28 km / 17 mi	depth 15 km	Oct 26, 04:46 UTC
1.7	1 km ENE of Kenwood, CA	84 km / 52 mi	depth 4 km	Oct 25, 07:33 UTC
1.7	4 km SSW of Muir Beach, CA	91 km / 56 mi	depth 6 km	Oct 25, 03:09 UTC
1.5	2 km WSW of Campbell, CA	98 km / 61 mi	depth 4 km	Oct 24, 06:10 UTC
1.9	4 km NE of Santa Rosa, CA	98 km / 61 mi	depth 7 km	Oct 23, 21:01 UTC
1.1	10 km E of Angwin, CA	78 km / 48 mi	depth 2 km	Oct 23, 16:28 UTC
1.5	5 km NNW of Pacifica, CA	93 km / 58 mi	depth 7 km	Oct 22, 21:09 UTC
1.0	15 km SE of Livermore, CA	61 km / 38 mi	depth 9 km	Oct 22, 19:45 UTC
1.4	12 km NNE of Angwin, CA	88 km / 55 mi	depth 7 km	Oct 22, 05:58 UTC
1.6	10 km ENE of Blackhawk, CA	34 km / 21 mi	depth 7 km	Oct 21, 18:18 UTC
1.3	8 km ENE of Alum Rock, CA	81 km / 50 mi	depth 1 km	Oct 21, 16:48 UTC
2.4	4 km SE of San Ramon, CA	49 km / 31 mi	depth 7 km	Oct 19, 23:29 UTC
1.7	1 km SW of San Ramon, CA	49 km / 31 mi	depth 9 km	Oct 19, 02:35 UTC
2.4	2 km SSW of San Ramon, CA	50 km / 31 mi	depth 7 km	Oct 19, 02:15 UTC
1.6	1 km WSW of San Ramon, CA	50 km / 31 mi	depth 8 km	Oct 19, 02:08 UTC
1.4	2 km W of San Ramon, CA	50 km / 31 mi	depth 6 km	Oct 19, 01:46 UTC
1.1	2 km SSW of San Ramon, CA	50 km / 31 mi	depth 6 km	Oct 19, 01:17 UTC
1.8	1 km SW of San Ramon, CA	50 km / 31 mi	depth 7 km	Oct 19, 00:24 UTC
1.6	2 km WSW of Alamo, CA	48 km / 30 mi	depth 9 km	Oct 18, 12:44 UTC
1.3	10 km E of Alum Rock, CA	86 km / 54 mi	depth 7 km	Oct 17, 17:42 UTC
1.8	3 km WSW of San Francisco Zoo, CA	91 km / 56 mi	depth 9 km	Oct 16, 19:43 UTC
2.1	26 km WSW of Westley, CA	80 km / 50 mi	depth 4 km	Oct 16, 16:36 UTC
1.6	5 km ENE of El Granada, CA	96 km / 60 mi	depth 0 km	Oct 16, 00:31 UTC
1.3	13 km SE of Livermore, CA	58 km / 36 mi	depth 0 km	Oct 15, 13:27 UTC

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