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Weak mag. 1.9 earthquake - California, 11 mi south of Shingletown, Shasta County, USA, on Tuesday, Nov 22, 2022 at 7:18 pm (GMT -8) -

Weak magnitude 1.9 earthquake at 1 km depth

23 Nov 03:22 UTC: First to report: USGS after 4 minutes.
23 Nov 17:22: Magnitude recalculated from 1.9 to 1.7. Hypocenter depth recalculated from 6.3 to 5.7 km (from 3.9 to 3.5 mi). Epicenter location corrected by 3.7 km (2.3 mi) towards N.
23 Nov 18:48: Magnitude recalculated from 1.7 to 1.9. Hypocenter depth recalculated from 5.7 to 1.0 km (from 3.5 to 0.6 mi).

Earthquake details

Date & time	Nov 23, 2022 03:18:00 UTC -
Local time at epicenter	Tuesday, Nov 22, 2022 at 7:18 pm (GMT -8)
Status	Confirmed
Magnitude	1.9
Depth	1.0 km
Epicenter latitude / longitude	40.33017°N / 121.90233°W (Tehama, California, United States)
Antipode	40.33°S / 58.098°E
Shaking intensity	Weak shaking near epicenter
Felt	0 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Lassen (39 km / 24 mi)
Nearby towns and cities	1 km (1 mi) ESE of Paynes Creek (pop: 57) \| Show on map \| Quakes nearby 18 km (11 mi) S of Shingletown (pop: 2,280) \| Show on map \| Quakes nearby 33 km (20 mi) ENE of Red Bluff (Tehama County) (pop: 14,100) \| Show on map \| Quakes nearby 36 km (22 mi) ESE of Anderson (Shasta County) (pop: 10,200) \| Show on map \| Quakes nearby 38 km (24 mi) NNE of Los Molinos (pop: 2,040) \| Show on map \| Quakes nearby 50 km (31 mi) SE of Redding (pop: 91,600) \| Show on map \| Quakes nearby 67 km (42 mi) N of Chico (pop: 90,300) \| Show on map \| Quakes nearby 68 km (42 mi) NNW of Paradise (Butte County) (pop: 26,500) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 5.4°C (42 F), humidity: 59%, wind: 2 m/s (4 kts) from ENE
Estimated seismic energy released	4.5 x 10⁷ joules (12.4 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
1.9	1 km	10km SSW of Manton, CA	USGS
1.9	1 km	Northern California	RaspberryShake
1.9	10 km	Northern California	IRIS

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

Seismograms

Seismic station: Marconi Conference Center, Marshall, CA, USA (MCCM/BK network) | Distance from quake: 257 km / 160 mi | Show on map | Station Info

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

Seismic station: Columbia College, Columbia, CA, USA (CMB/BK network) | Distance from quake: 287 km / 178 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: Wild Horse Valley, Oregon, USA (WVOR/US network) | Distance from quake: 359 km / 223 mi | Show on map | Station Info

Seismic station Wild Horse Valley, Oregon, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Wild Horse Valley, Oregon, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Wild Horse Valley, Oregon, 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: Central Pumice Cone, Newberry Volcano (CPCO/CC network) | Distance from quake: 381 km / 237 mi | Show on map | Station Info

Seismic station Central Pumice Cone, Newberry Volcano: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Central Pumice Cone, Newberry Volcano: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Central Pumice Cone, Newberry Volcano: 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: The Wife (WIFE/CC network) | Distance from quake: 415 km / 258 mi | Show on map | Station Info

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

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

Seismic station The Wife: 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 1.9, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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