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Minor mag. 0.9 earthquake - 3km W of Redlands, CA, on Friday, Sep 30, 2022 at 11:19 pm (GMT -7) -

Minor magnitude 0.9 earthquake at 13 km depth

1 Oct 06:22 UTC: First to report: USGS after 2 minutes.
1 Oct 06:23: Magnitude recalculated from 1.1 to 0.9. Hypocenter depth recalculated from 15.3 to 12.6 km (from 9.5 to 7.8 mi). Epicenter location corrected by 2 km (1.2 mi) towards SE.

Earthquake details

Date & time	Oct 1, 2022 06:19:35 UTC -
Local time at epicenter	Friday, Sep 30, 2022 at 11:19 pm (GMT -7)
Status	Confirmed
Magnitude	0.9
Depth	12.6 km
Epicenter latitude / longitude	34.044°N / 117.2°W (California, United States)
Antipode	34.044°S / 62.8°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Lavic Lake (95 km / 59 mi)
Nearby towns and cities	2 km (1 mi) SW of Redlands (pop: 71,000) \| Show on map \| Quakes nearby 9 km (6 mi) S of Highland (pop: 54,900) \| Show on map \| Quakes nearby 11 km (7 mi) SE of San Bernardino (pop: 216,100) \| Show on map \| Quakes nearby 11 km (7 mi) ESE of Colton (pop: 54,600) \| Show on map \| Quakes nearby 12 km (8 mi) NNE of Moreno Valley (pop: 204,200) \| Show on map \| Quakes nearby 17 km (11 mi) ESE of Rialto (pop: 103,100) \| Show on map \| Quakes nearby 21 km (13 mi) ENE of Riverside (pop: 322,400) \| Show on map \| Quakes nearby 22 km (14 mi) ESE of Fontana (pop: 207,500) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 18.8°C (66 F), humidity: 78%, wind: 2 m/s (3 kts) from WSW
Estimated seismic energy released	1.4 x 10⁶ joules (0.392 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
0.9	13 km	3km W of Redlands, CA	USGS
0.9	13 km	Southern California	RaspberryShake
0.9	10 km	Southern California	IRIS

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

Seismograms

Seismic station: Seven Oaks (SVD/CI network) | Distance from quake: 12 km / 7 mi | Show on map | Station Info

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

Seismic station Seven Oaks: 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: Big Bear Solar Observatory (BBR/CI network) | Distance from quake: 35 km / 22 mi | Show on map | Station Info

Seismic station Big Bear Solar Observatory: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Big Bear Solar Observatory: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Big Bear Solar Observatory: 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: Mt. Baldy Ranger Station (BFS/CI network) | Distance from quake: 47 km / 29 mi | Show on map | Station Info

Seismic station Mt. Baldy Ranger Station: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Mt. Baldy Ranger Station: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Mt. Baldy Ranger Station: 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: Murrieta (MUR/CI network) | Distance from quake: 49 km / 31 mi | Show on map | Station Info

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

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

Seismic station Murrieta: 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: Red Mountain, Riverside Co, CA, USA (RDM/AZ network) | Distance from quake: 56 km / 35 mi | Show on map | Station Info

Seismic station Red Mountain, Riverside Co, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Red Mountain, Riverside Co, 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

User reports for this quake

At magnitude 0.9, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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