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Minor mag. 1.8 earthquake - 28 mi east of Merced, California, USA, on Thursday, Dec 1, 2022 at 1:36 am (GMT -8) -

Minor magnitude 1.8 earthquake at 16 km depth

1 Dec 10:33 UTC: First to report: USGS after 58 minutes.

Earthquake details

Date & time	Dec 1, 2022 09:36:05 UTC -
Local time at epicenter	Thursday, Dec 1, 2022 at 1:36 am (GMT -8)
Status	Confirmed
Magnitude	1.8
Depth	15.7 km
Epicenter latitude / longitude	37.38683°N / 119.989°W (Mariposa, California, United States)
Antipode	37.387°S / 60.011°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Mammoth Mountain (89 km / 55 mi)
Nearby towns and cities	11 km (7 mi) ESE of Catheys Valley (pop: 825) \| Show on map \| Quakes nearby 11 km (7 mi) S of Mariposa (pop: 2,170) \| Show on map \| Quakes nearby 38 km (24 mi) NE of Chowchilla (Madera County) (pop: 18,500) \| Show on map \| Quakes nearby 45 km (28 mi) ENE of Merced (pop: 82,400) \| Show on map \| Quakes nearby 48 km (30 mi) N of Madera (pop: 64,200) \| Show on map \| Quakes nearby 55 km (34 mi) E of Atwater (pop: 29,200) \| Show on map \| Quakes nearby 67 km (42 mi) NNW of Clovis (pop: 104,200) \| Show on map \| Quakes nearby 74 km (46 mi) NNW of Fresno (pop: 520,100) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 6.7°C (44 F), humidity: 61%, wind: 3 m/s (7 kts) from ESE
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	16 km	11km S of Mariposa, CA	USGS
1.8	10 km	Central California	IRIS
1.8	16 km	Central California	RaspberryShake

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

Seismograms

Seismic station: Columbia College, Columbia, CA, USA (CMB/BK network) | Distance from quake: 80 km / 50 mi | Show on map | Station Info

Seismic station Columbia College, Columbia, 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 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, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Mammoth (MLAC/CI network) | Distance from quake: 105 km / 65 mi | Show on map | Station Info

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

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

Seismic station Mammoth: 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: 130 km / 81 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: San Andreas Geophysical Obs., Hollister, CA, USA (SAO/BK network) | Distance from quake: 147 km / 91 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)

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.
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: 190 km / 118 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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