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Minor mag. 0.4 earthquake - 17km ESE of Anza, CA, on Friday, Sep 30, 2022 at 1:49 pm (GMT -7) -

Minor magnitude 0.4 earthquake at 12 km depth

30 Sep 23:54 UTC: First to report: USGS after 3 hours.

Earthquake details

Date & time	Sep 30, 2022 20:49:59 UTC -
Local time at epicenter	Friday, Sep 30, 2022 at 1:49 pm (GMT -7)
Status	Confirmed
Magnitude	0.4
Depth	11.5 km
Epicenter latitude / longitude	33.48917°N / 116.505°W (California, United States)
Antipode	33.489°S / 63.495°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Salton Buttes (88 km / 55 mi)
Nearby towns and cities	13 km (8 mi) SSW of Alpine Village (pop: 146) \| Show on map \| Quakes nearby 26 km (16 mi) SW of La Quinta (pop: 40,500) \| Show on map \| Quakes nearby 29 km (18 mi) SSW of Palm Desert (pop: 51,900) \| Show on map \| Quakes nearby 33 km (20 mi) S of Cathedral City (pop: 53,800) \| Show on map \| Quakes nearby 37 km (23 mi) SW of Indian Wells (pop: 87,500) \| Show on map \| Quakes nearby 38 km (24 mi) S of Palm Springs (pop: 47,400) \| Show on map \| Quakes nearby 84 km (52 mi) SE of Moreno Valley (pop: 204,200) \| Show on map \| Quakes nearby 100 km (62 mi) SE of San Bernardino (pop: 216,100) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	2.5 x 10⁵ joules (0.07 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
0.4	12 km	17km ESE of Anza, CA	USGS

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

Seismograms

Seismic station: Toro Peak, Riverside Co, CA, USA (TRO/AZ network) | Distance from quake: 8 km / 5 mi | Show on map | Station Info

Seismic station Toro Peak, Riverside Co, 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 Toro Peak, Riverside Co, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Toro Peak, Riverside Co, 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: Ford Ranch, Anza, CA, USA (FRD/AZ network) | Distance from quake: 9 km / 6 mi | Show on map | Station Info

Seismic station Ford Ranch, Anza, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Ford Ranch, Anza, 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: Jim Saunders Place, Anza, CA, USA (SND/AZ network) | Distance from quake: 12 km / 8 mi | Show on map | Station Info

Seismic station Jim Saunders Place, Anza, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Jim Saunders Place, Anza, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Jim Saunders Place, Anza, 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: Pinon Flat Observatory, CA, USA (BPH12/PY network) | Distance from quake: 14 km / 8 mi | Show on map | Station Info

Seismic station Pinon Flat Observatory, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Pinon Flat Observatory, 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: Pinon Flat Observatory, CA, USA (BPH07/PY network) | Distance from quake: 14 km / 9 mi | Show on map | Station Info

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

Earlier earthquakes in the same area

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