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Minor mag. 1.0 earthquake - Southern Alaska on Sunday, Nov 27, 2022 at 5:22 pm (GMT -9) -

Minor magnitude 1.0 earthquake at 168 km depth

28 Nov 02:26 UTC: First to report: USGS after 3 minutes.

Earthquake details

Date & time	Nov 28, 2022 02:22:46 UTC -
Local time at epicenter	Sunday, Nov 27, 2022 at 5:22 pm (GMT -9)
Status	Confirmed
Magnitude	1
Depth	168.2 km
Epicenter latitude / longitude	59.8329°N / 153.5824°W (Alaska, United States)
Antipode	59.833°S / 26.418°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Iliamna (35 km / 22 mi)
Nearby towns and cities	30 km (18 mi) E of Pedro Bay (pop: 42) \| Show on map \| Quakes nearby 58 km (36 mi) SE of Port Alsworth (pop: 159) \| Show on map \| Quakes nearby 72 km (45 mi) E of Nondalton (pop: 157) \| Show on map \| Quakes nearby 75 km (46 mi) E of Newhalen (pop: 182) \| Show on map \| Quakes nearby 80 km (50 mi) NE of Kokhanok (pop: 170) \| Show on map \| Quakes nearby 98 km (61 mi) W of Anchor Point (pop: 1,930) \| Show on map \| Quakes nearby 108 km (67 mi) WNW of English Bay (pop: 254) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds -12°C (10 F), humidity: 77%, wind: 2 m/s (3 kts) from N
Estimated seismic energy released	2 x 10⁶ joules (0.554 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
1.0	168 km	Southern Alaska	USGS
1.0	168 km	Southern Alaska	RaspberryShake
1.0	10 km	Southern Alaska	IRIS

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

Seismograms

Seismic station: Iliamna Southwest, Iliamna Volcano, Alaska (ILSW/AV network) | Distance from quake: 30 km / 18 mi | Show on map | Station Info

Seismic station Iliamna Southwest, Iliamna Volcano, Alaska: 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 Iliamna Southwest, Iliamna Volcano, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Southwest, Iliamna Volcano, Alaska: 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: Iliamna Volcano, Alaska (ILCB/AV network) | Distance from quake: 31 km / 19 mi | Show on map | Station Info

Seismic station Iliamna Volcano, Alaska: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Volcano, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Volcano, Alaska: 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: Iliamna Northeast, Iliamna, Alaska (ILNE/AV network) | Distance from quake: 38 km / 24 mi | Show on map | Station Info

Seismic station Iliamna Northeast, Iliamna, Alaska: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Northeast, Iliamna, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Northeast, Iliamna, Alaska: 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: Iliamna Volcano, Alaska (ILLG/AV network) | Distance from quake: 43 km / 27 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

Seismic station: Augustine North, Augustine Island, Alaska (AUNO/AV network) | Distance from quake: 48 km / 30 mi | Show on map | Station Info

Seismic station Augustine North, Augustine Island, Alaska: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Augustine North, Augustine Island, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Augustine North, Augustine Island, Alaska: 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 1.0, such a quake wouldn't normally be felt by people, but could be recorded instrumentally.

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