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Minor mag. 2.3 earthquake - 10.2 mi northwest of Valdez, Alaska, USA, on Sunday, Mar 19, 2023 at 6:16 am (GMT -8) -

Minor magnitude 2.3 earthquake at 20 km depth

19 Mar 14:19 UTC: First to report: USGS after 3 minutes.

Earthquake details

Date & time	Mar 19, 2023 14:16:45 UTC -
Local time at epicenter	Sunday, Mar 19, 2023 at 6:16 am (GMT -8)
Status	Confirmed
Magnitude	2.3
Depth	19.9 km
Epicenter latitude / longitude	61.2347°N / 146.5679°W (Chugach, Alaska, United States)
Antipode	61.235°S / 33.432°E
Shaking intensity	Not felt
Felt
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Wrangell (159 km / 99 mi)
Nearby towns and cities	16 km (10 mi) NW of Valdez (pop: 3,870) \| Show on map \| Quakes nearby 42 km (26 mi) N of Tatitlek (pop: 88) \| Show on map \| Quakes nearby 85 km (53 mi) S of Nelchina (pop: 59) \| Show on map \| Quakes nearby 86 km (53 mi) SE of Glacier View (pop: 234) \| Show on map \| Quakes nearby 88 km (54 mi) WSW of Tonsina (pop: 78) \| Show on map \| Quakes nearby 89 km (55 mi) NNW of Cordova (pop: 2,200) \| Show on map \| Quakes nearby 93 km (58 mi) S of Mendeltna (pop: 39) \| Show on map \| Quakes nearby 97 km (60 mi) SW of Willow Creek (pop: 191) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Light Snow -7.9°C (18 F), humidity: 98%, wind: 2 m/s (4 kts) from WSW
Estimated seismic energy released	1.8 x 10⁸ joules (49.4 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
2.3	20 km	16 Km NW of Valdez, Alaska	USGS
2.3	20 km	Southern Alaska	RaspberryShake
2.3	10 km	Southern Alaska	IRIS

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

Seismograms

Seismic station: Sheep Mountain, AK, USA (SCM/AK network) | Distance from quake: 78 km / 48 mi | Show on map | Station Info

Seismic station Sheep Mountain, AK, 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 Sheep Mountain, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Sheep Mountain, AK, 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: Knik Glacier, AK, USA (KNK/AK network) | Distance from quake: 103 km / 64 mi | Show on map | Station Info

Seismic station Knik Glacier, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Knik Glacier, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Knik Glacier, AK, 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: Gloryhole, AK, USA (GHO/AK network) | Distance from quake: 139 km / 86 mi | Show on map | Station Info

Seismic station Gloryhole, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Gloryhole, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Gloryhole, AK, 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: Rabbit Creek, AK, USA (RC01/AK network) | Distance from quake: 171 km / 106 mi | Show on map | Station Info

Seismic station Rabbit Creek, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Rabbit Creek, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Rabbit Creek, AK, 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: Chulitna, AK, USA (CUT/AK network) | Distance from quake: 234 km / 145 mi | Show on map | Station Info

Seismic station Chulitna, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Chulitna, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Chulitna, AK, 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 2.3, such a quake wouldn't normally be felt by people except under very favorable conditions.

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

There are no user reports for this quake.

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