Although our monitoring service initially determined network activity typical of an earthquake, there was no confirmation from a national or international seismological agency. Because of this, it is highly unlikely that it was caused by an earthquake.
May 8, 23:19 UTC: First report: VolcanoDiscovery after 16 hours.
I felt this tremor
I didn’t feel it
Date and time: May 8, 2021 07:41:10 UTC –
Depth: 10.0 km
Latitude / Longitude of epicenter: 37.81086 ° N / 122.25323 ° W. (California, USA)
Nearest volcano: Clear Lake (137 km)
Primary data source: VolcanoDiscovery
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Data for the same earthquake reported by different authorities
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|not specified||n / A||Near San Francisco, California, USA||VolcanoDiscovery|
User reports for this quake (1)
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0 km southwest of the epicenter [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
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