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Minor mag. 0.1 earthquake - Washington on Sunday, Nov 20, 2022 at 9:09 am (GMT -8) -

Minor magnitude 0.1 earthquake at 0 km depth

21 Nov 04:16 UTC: First to report: USGS after 11 hours.

Earthquake details

Date & time	Nov 20, 2022 17:09:48 UTC -
Local time at epicenter	Sunday, Nov 20, 2022 at 9:09 am (GMT -8)
Status	Confirmed
Magnitude	0.1
Depth	0.3 km
Epicenter latitude / longitude	46.19467°N / 122.18483°W (Washington, United States)
Antipode	46.195°S / 57.815°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Mount St. Helens (1 km / 1 mi)
Nearby towns and cities	38 km (23 mi) NNE of Amboy (pop: 1,610) \| Show on map \| Quakes nearby 53 km (33 mi) NNE of Battle Ground (Clark County) (pop: 19,400) \| Show on map \| Quakes nearby 58 km (36 mi) E of Longview (Cowlitz County) (pop: 36,800) \| Show on map \| Quakes nearby 65 km (40 mi) NNE of Salmon Creek (pop: 19,700) \| Show on map \| Quakes nearby 70 km (43 mi) NNE of La Camas (pop: 21,800) \| Show on map \| Quakes nearby 72 km (45 mi) NNE of Vancouver (pop: 172,900) \| Show on map \| Quakes nearby 84 km (52 mi) NNE of Portland (Oregon) (pop: 632,300) \| Show on map \| Quakes nearby 97 km (60 mi) NE of Hillsboro (Oregon) (pop: 102,300) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake
Estimated seismic energy released	89125 joules (0.025 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
0.1	0.3 km	Washington	USGS
0.1	0.3 km	Washington	RaspberryShake

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

Seismograms

Seismic station: Rembrant, Mount St. Helens (REM/CC network) | Distance from quake: 1 km / 0 mi | Show on map | Station Info

Seismic station Rembrant, Mount St. Helens: 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 Rembrant, Mount St. Helens: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Rembrant, Mount St. Helens: 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: September lobe, Mt. St. Helens (Dome sta) (SEP/CC network) | Distance from quake: 1 km / 0 mi | Show on map | Station Info

Seismic station September lobe, Mt. St. Helens (Dome sta): vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station September lobe, Mt. St. Helens (Dome sta): horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station September lobe, Mt. St. Helens (Dome sta): 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: Vault, Mount St. Helens (VALT/CC network) | Distance from quake: 2 km / 1 mi | Show on map | Station Info

Seismic station Vault, Mount St. Helens: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Vault, Mount St. Helens: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Vault, Mount St. Helens: 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: Sugar Bowl (SUG/CC network) | Distance from quake: 2 km / 1 mi | Show on map | Station Info

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

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

Seismic station Sugar Bowl: 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: Southwest Flank 2, Mount St. Helens (SWF2/CC network) | Distance from quake: 3 km / 2 mi | Show on map | Station Info

Seismic station Southwest Flank 2, Mount St. Helens: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Southwest Flank 2, Mount St. Helens: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Southwest Flank 2, Mount St. Helens: 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 0.1, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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