Weak mag. 2.4 earthquake - 154km S of Atka, Alaska, on Tuesday, April 21, 2015 03:16:36
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Weak magnitude 2.4 earthquake at 7 km depth
21 Apr 18:10 UTC: First to report: USGS after 2 hours and 53 minutes.
Date & time: 21 Apr 2015 15:16:36 UTC
Local time at epicenter: Tuesday, April 21, 2015 03:16:36
Depth: 7.4 km
Epicenter latitude / longitude: 50.8284°N / 173.8062°W (Alaska, Alaska, United States)
Nearest volcano: Sergief (157 km / 98 mi)
Nearby towns and cities:
155 km (96 mi) S of Atka (pop: 64) --> See nearby quakes!
228 km (142 mi) ESE of Adak (pop: 332) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 108 joules (69.8 kilowatt hours) 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.
|M 2.4||7.4 km||154km S of Atka, Alaska||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.At magnitude 2.4, this quake might have been felt very close to the epicenter and under calm conditions.