Quake Info: Reported (unconfirmed) earthquake: Near San Jose, California, United States, April 18, 2021, 7:43 a.m. GMT
It is assumed that this record was not from an actual earthquake. This could be due to some other (unknown) event that causes tremors, such as: B. Weather and sonic booms. In other cases, officially reported quakes are sometimes removed later.
This can happen when initial automatic calculations return an earthquake, but turn out to be incorrect on subsequent (manual) revision.
The first report is below:
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.
18 Apr 07:45 UTC: First report: VolcanoDiscovery after 3 minutes.
I felt this tremor
I didn’t feel it
Date and time: April 18, 2021 07:43:16 UTC –
Depth: 10.0 km
Latitude / Longitude of epicenter: 37.29305 ° N / 122.00552 ° W. (California, USA)
Nearest volcano: Clear Lake (198 km)
Primary data source: VolcanoDiscovery
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Dates for the same earthquake reported by different authorities
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User reports for this quake (1)
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0 km WNW of the epicenter [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s : Floor vibration
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