Light mag. 4.3 earthquake - 32 mi south of Homer, Kenai Peninsula, Alaska, USA, on Tuesday, 26 Jan 2021 1:23 pm (GMT -9) -
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in the US| Alaska
Light magnitude 4.3 earthquake at 42 km depth
26 Jan 22:26 UTC: First to report: USGS after 3 minutes.
26 Jan 22:29: Hypocenter depth recalculated from 35.0 to 34.7 km (from 22 to 22 mi).
26 Jan 22:33: Hypocenter depth recalculated from 34.7 to 41.9 km (from 22 to 26 mi). Epicenter location corrected by 2.4 km (1.5 mi) towards W.
26 Jan 22:29: Hypocenter depth recalculated from 35.0 to 34.7 km (from 22 to 22 mi).
26 Jan 22:33: Hypocenter depth recalculated from 34.7 to 41.9 km (from 22 to 26 mi). Epicenter location corrected by 2.4 km (1.5 mi) towards W.
Update Tue, 26 Jan 2021, 22:30
Light magnitude 4.3 quake hits 32 miles south of Homer, Alaska, United States around noon4.3 quake 26 Jan 1:23 pm (GMT -9)
A magnitude 4.3 earthquake near Homer, Kenai Peninsula County, Alaska, USA, was reported only 7 minutes ago by the United States Geological Survey (USGS), considered the key international and national agency that monitors seismic activity in the US. The earthquake occurred at a moderately shallow depth of 22 miles beneath the epicenter around noon on Tuesday 26 January 2021 at 1:23 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.3 as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Port Graham (pop. 180) located 14 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Homer (pop. 5,500) located 32 miles from the epicenter, Diamond Ridge (pop. 1,200) 35 miles away, Fritz Creek (pop. 1,900) 40 miles away, and Anchor Point (pop. 1,900) 42 miles away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.3 as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Port Graham (pop. 180) located 14 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Homer (pop. 5,500) located 32 miles from the epicenter, Diamond Ridge (pop. 1,200) 35 miles away, Fritz Creek (pop. 1,900) 40 miles away, and Anchor Point (pop. 1,900) 42 miles away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
Earthquake data:
Date & time: 26 Jan 2021 22:23:25 UTC -
Local time at epicenter: Tuesday, 26 Jan 2021 1:23 pm (GMT -9)
Magnitude: 4.3
Depth: 41.9 km
Epicenter latitude / longitude: 59.1764°N / 151.6701°W
(Kenai Peninsula, Alaska, United States)Nearest volcano: Augustine (104 km / 65 mi)
Nearby towns and cities:
21 km (13 mi) SSE of Port Graham (pop: 177) --> See nearby quakes!
29 km (18 mi) S of Seldovia (pop: 277) --> See nearby quakes!
52 km (32 mi) S of Homer (pop: 5,520) --> See nearby quakes!
66 km (41 mi) SSW of Fritz Creek (pop: 1,930) --> See nearby quakes!
67 km (42 mi) S of Anchor Point (pop: 1,930) --> See nearby quakes!
140 km (87 mi) S of Kalifornsky (pop: 7,850) --> See nearby quakes!
247 km (154 mi) SSW of Anchorage (pop: 298,700) --> See nearby quakes!
265 km (165 mi) SSW of Eagle River (pop: 24,800) --> See nearby quakes!
265 km (165 mi) SSW of Eagle River (Anchorage) (pop: 24,800) --> See nearby quakes!
998 km (620 mi) WNW of Juneau (pop: 32,800) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
-1.3°C (30 F), humidity: 74%, wind: 2 m/s (4 kts) from NNW
Primary data source: USGS (United States Geological Survey)Clear Sky
-1.3°C (30 F), humidity: 74%, wind: 2 m/s (4 kts) from NNWEstimated released energy: 1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) More info
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.
| Magnitude | Depth | Location | Source |
| 4.3 | 42 km | 21 Km SSE of Port Graham, Alaska, USA | USGS |
| 4.7 | 58 km | KENAI PENINSULA, ALASKA, USA | EMSC |
User reports for this quake (5)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Homer Bluff AK (68.3 km SSE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 1-2 s : Two short bumps | One user found this interesting.
51.8 km N of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
244.5 km NE of epicenter [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s (reported through our app)
Ninilchik (95.6 km N of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s (reported through our app)
Saint Paul / not felt : I read about it today from saint Paul m n 142am Zach jr anderson
Earlier earthquakes in the same area since 1900
- Date / time UTC| Mag |Depth|Age|Distance| Details
- 24 Jan 2016 10:30| 7.1 |128km / 79mi|5 years ago|114km / 71mi| Gulf of Alaska, 24 mi E of Pedro Bay, Lake and Peninsula County, Alaska, USA
- 04 Sep 1965 14:32| 7.0 |28km / 17mi|56 years ago|131km / 81mi| Gulf of Alaska, 13 mi N of Spruce Island, Kodiak Island County, Alaska, USA
- 10 Jun 1912 16:06| 6.9 |unknown|109 years ago|78km / 49mi| Gulf of Alaska, 14 mi E of Shaw Island, Kenai Peninsula, Alaska, USA
- 03 Nov 1945 22:09| 6.8 |50km / 31mi|75 years ago|85km / 53mi| Gulf of Alaska, 192 mi S of Anchorage, Alaska, USA
- 07 Feb 1988 08:46| 6.5 |138km / 85mi|33 years ago|144km / 90mi| Kenai Peninsula County, 122 mi SW of Anchorage, Alaska, USA
- 28 Mar 1964 06:44| 6.5 |25km / 16mi|57 years ago|110km / 69mi| Gulf of Alaska, 50 mi NE of Kodiak, Alaska, USA
- 05 Dec 1942 14:28| 6.5 |100km / 62mi|78 years ago|41km / 25mi| Gulf of Alaska, 19 mi SW of Homer, Kenai Peninsula County, Alaska, USA
- 28 Mar 1964 07:10| 6.4 |20km / 12.4mi|57 years ago|138km / 86mi| Gulf of Alaska, 55 mi SE of Pye s Island, Kenai Peninsula, Alaska, USA
- 24 Jan 1958 23:17| 6.4 |52km / 32mi|63 years ago|110km / 68mi| Gulf of Alaska, 8.2 mi NW of Munina, Kenai Peninsula County, Alaska, USA
- 07 Jun 1912 09:55| 6.4 |unknown|109 years ago|78km / 49mi| Gulf of Alaska, 14 mi E of Shaw Island, Kenai Peninsula, Alaska, USA
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