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Quake data: Unconfirmed quake reported: 22 mi northeast of San Francisco, California, USA, 7 Could 2021 06:58 GMT

Quake status: very uncertain

It is assumed that this recording did not come from an actual earthquake as there is no officially confirmed quake that exactly matches the user reports we received of the reported event.
In most cases, this event likely reflects something else that caused the tremors, such as B. an explosion (typical of mining areas), a sonic boom, traffic, weather, or some other human or natural cause.
The first report is below:

Our surveillance service AllQuakes received reports of an earthquake in or near San Francisco, California, USA at around 6:58 am GMT. Unless at least one national or international seismological agency confirms this, their status remains unconfirmed.

May 7, 07:18 UTC: First report: VolcanoDiscovery after 20 minutes.

I felt this tremor

I didn’t feel it

Date and time: May 7, 2021 06:58:32 UTC –
Size: unknown
Depth: 10.0 km
Latitude / Longitude of epicenter: 37.99809 ° N / 122.13518 ° W. (California, USA)
Nearest volcano: Clear Lake (121 km)
Primary data source: VolcanoDiscovery

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Data for the same earthquake reported by different authorities

Info: The more agencies report on the same quake and publish similar data, the more confidence you can have in the data. It usually takes up to a few hours for the earthquake parameters to be calculated with near optimal accuracy.

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User reports for this quake (2)

Leave a comment if you find a particular report interesting or want to add to it.
Report as inappropriate.

Martinez approx. (0 km WNW of the epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : It woke me up. A strong rattle for my Ned

Home / Weak shaking (MMI III) / Rattling, vibrating / 30-60 s : I felt a slight tremor

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