Earthquake Details

Hercules, Ca 2.75m Earthquake, Saturday Oct. 23 2021, 6:34:44 AM

Hercules, CA Earthquake

The USGS has reported a 2.75 magnitude earthquake has struck 4km SE of Hercules, CA on Oct. 23 2021, 6:34:44 AM, at a depth of 9.76 km. There were no significant injuries or damage reported at this point, Friendly Forecast will update this report as events unfold.

Foreshock

This earthquake has been labeled a Foreshock. You can find information for the main earthquake here: Alum Rock, Ca 2.81m Earthquake, Monday Oct. 25 2021, 11:55:52 PM

Did you feel it?

308 others have felt the Hercules, CA earthquake and have since reported it. See below for the response locations and intensities.

Community Internet Intensity Map

Responses	Location	Shaking	Distance
1	Dos Palos, CA 93620	WEAK	177 km
2	San Francisco, CA 94103	WEAK	29 km
1	Alameda, CA 94501	LIGHT	26 km
2	American Canyon, CA 94503	WEAK	24 km
16	Benicia, CA 94510	WEAK	18 km
2	Pleasant Hill, CA 94523	WEAK	18 km
2	Crockett, CA 94525	LIGHT	11 km
1	Danville, CA 94526	LIGHT	31 km
6	El Cerrito, CA 94530	WEAK	13 km
1	Hayward, CA 94541	WEAK	39 km
51	Hercules, CA 94547	LIGHT	9 km
1	Lafayette, CA 94549	WEAK	18 km
35	Martinez, CA 94553	LIGHT	12 km
4	Orinda, CA 94563	LIGHT	17 km
36	Pinole, CA 94564	LIGHT	10 km
11	Rodeo, CA 94572	LIGHT	10 km
1	San Leandro, CA 94577	WEAK	33 km
1	San Ramon, CA 94583	NO	35 km
15	Vallejo, CA 94590	WEAK	15 km
14	Vallejo, CA 94591	WEAK	17 km
1	Oakland, CA 94606	WEAK	24 km
3	Emeryville, CA 94608	WEAK	20 km
1	Oakland, CA 94609	WEAK	20 km
4	Oakland, CA 94610	WEAK	22 km
2	Oakland, CA 94611	WEAK	20 km
1	Berkeley, CA 94702	WEAK	17 km
2	Berkeley, CA 94704	WEAK	16 km
4	Albany, CA 94706	WEAK	15 km
6	Berkeley, CA 94708	WEAK	14 km
2	Berkeley, CA 94709	WEAK	16 km
6	Richmond, CA 94801	WEAK	15 km
37	El Sobrante, CA 94803	LIGHT	10 km
6	Richmond, CA 94804	WEAK	15 km
4	Richmond, CA 94805	LIGHT	12 km
17	San Pablo, CA 94806	LIGHT	12 km
2	San Rafael, CA 94901	LIGHT	24 km
1	San Anselmo, CA 94960	WEAK	30 km
1	Santa Cruz, CA 95065	LIGHT	109 km
1	Turlock, CA 95382	WEAK	134 km
1	Santa Rosa, CA 95404	LIGHT	55 km
1	Vacaville, CA 95687	WEAK	48 km

Did you feel the 2.75 Hercules, CA earthquake? If you felt the quake you can report it here to the USGS.

Other Imagery and Data

GEO Community Internet Intensity Map

Intensity vs Distance Plot

Responses vs Time Plot

World Earthquake Watch

Below are the most recent earthquakes that have happened around the world. Visit our World Earthquake Watch page for a more complete list.

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