Moderate mag. 4.0 earthquake - North Pacific Ocean, 121 mi southeast of Adak, Aleutians West County, Alaska, USA, on Monday, April 21, 2014 00:56:27
Quake Data | Interactive map | User Reports | Earlier quakes in same area | Quakes in the US| Alaska | Alaska

Moderate magnitude 4.0 earthquake at 10 km depth
21 Apr 13:51 UTC: First to report: USGS after 55 minutes.
Date & time: 21 Apr 2014 12:56:27 UTC
Local time at epicenter: Monday, April 21, 2014 00:56:27
Magnitude: 4
Depth: 10.0 km
Epicenter latitude / longitude: 51.0487°N / 174.1651°W

Nearest volcano: Sergief (124 km / 77 mi)
Nearby towns and cities:
128 km (79 mi) S of Atka (pop: 64) --> See nearby quakes!
194 km (121 mi) ESE of Adak (pop: 332) --> See nearby quakes!
420 km (261 mi) WSW of Nikolski (pop: 18) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 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 |
M 4.0 | 10 km | 127km S of Atka, Alaska | USGS |
M 4.0 | 10 km | ANDREANOF ISLANDS, ALEUTIAN IS. | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
be the first to report it!
There are no user reports for this quake yet. If you felt it Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!