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Minor mag. 1.8 earthquake - 2.1 mi west of Cupertino, Santa Clara County, California, USA, on Tuesday, Nov 29, 2022 at 9:26 pm (GMT -8) -

Minor magnitude 1.8 earthquake at 6 km depth

30 Nov 05:29 UTC: First to report: USGS after 3 minutes.
30 Nov 06:28: Hypocenter depth recalculated from 6.1 to 5.6 km (from 3.8 to 3.5 mi). Epicenter location corrected by 0.6 km (0.4 mi) towards SE.

Earthquake details

Date & time	Nov 30, 2022 05:26:01 UTC -
Local time at epicenter	Tuesday, Nov 29, 2022 at 9:26 pm (GMT -8)
Status	Confirmed
Magnitude	1.8
Depth	5.6 km
Epicenter latitude / longitude	37.315°N / 122.06967°W (Santa Clara, California, United States)
Antipode	37.315°S / 57.93°E
Shaking intensity	Very weak shaking
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Clear Lake (194 km / 121 mi)
Nearby towns and cities	3 km (2 mi) WSW of Cupertino (pop: 60,600) \| Show on map \| Quakes nearby 7 km (4 mi) SSW of seonibeil (pop: 151,800) \| Show on map \| Quakes nearby 7 km (4 mi) NW of Saratoga (Santa Clara County) (pop: 31,000) \| Show on map \| Quakes nearby 8 km (5 mi) S of Mountain View (pop: 80,400) \| Show on map \| Quakes nearby 9 km (5 mi) SSE of Los Altos (Santa Clara County) (pop: 30,700) \| Show on map \| Quakes nearby 11 km (7 mi) WSW of Santa Clara (pop: 126,200) \| Show on map \| Quakes nearby 16 km (10 mi) W of San Jose (pop: 1,026,900) \| Show on map \| Quakes nearby 27 km (17 mi) SSW of Fremont (pop: 232,200) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 6.4°C (44 F), humidity: 67%, wind: 2 m/s (4 kts) from SW
Estimated seismic energy released	3.2 x 10⁷ joules (8.78 kilowatt hours) \| about seismic energy

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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.

Mag.	Depth	Location	Source
1.8	5.6 km	4km W of Cupertino, CA	USGS
1.8	5.6 km	Central California	RaspberryShake
1.8	10 km	Central California	IRIS

Most recent quakes Top 20 past 24 hrs Quakes in the US California

Seismograms

Seismic station: San Andreas Geophysical Obs., Hollister, CA, USA (SAO/BK network) | Distance from quake: 82 km / 51 mi | Show on map | Station Info

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Marconi Conference Center, Marshall, CA, USA (MCCM/BK network) | Distance from quake: 117 km / 72 mi | Show on map | Station Info

Seismic station Marconi Conference Center, Marshall, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Marconi Conference Center, Marshall, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Marconi Conference Center, Marshall, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Columbia College, Columbia, CA, USA (CMB/BK network) | Distance from quake: 168 km / 105 mi | Show on map | Station Info

Seismic station Columbia College, Columbia, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Columbia College, Columbia, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Columbia College, Columbia, CA, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Valley Oaks Golf Course (VOG/CI network) | Distance from quake: 264 km / 164 mi | Show on map | Station Info

Seismic station Valley Oaks Golf Course: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Valley Oaks Golf Course: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Valley Oaks Golf Course: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Vestal (VES/CI network) | Distance from quake: 313 km / 194 mi | Show on map | Station Info

Seismic station Vestal: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Vestal: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Vestal: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

At magnitude 1.8, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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