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Minor earthquake, 3.3 mag strikes near Nanwalek in Alaska

Earthquake location 59.4895S, -152.7985WA minor earthquake with magnitude 3.3 (ml/mb) was detected on Monday, 51 kilometers (32 miles) from Nanwalek in Alaska. All ids that are associated to the event: ak021ifg81u. Unique identifier: ak021ifg81u. Global date and time of event UTC/GMT: 11/01/21 / 2021-01-11 14:34:24 / January 11, 2021 @ 2:34 pm. Exact location of event, longitude -152.7985 West, latitude 59.4895 North, depth = 73.7 km. The temblor was picked up at 14:34:24 / 2:34 pm (local time epicenter). The earthquake occurred at a depth of 73.7 km (46 miles) below the earth’s surface.

Earthquake epicenter was 72 km (45 miles) from Homer (c. 5 000 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Homer.

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days four and in the last 365 days seventy-four earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 51 km WNW of Nanwalek, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -152.7985° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 59.4895° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 73.7 km Depth of the event in kilometers.
Place 51 km WNW of Nanwalek, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-11 14:34:24 Time when the event occurred. UTC/GMT
Updated 2021-01-11 14:38:32 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status automatic Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 168 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.57 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ak021ifg81u Id of event.
Event Code 021ifg81u An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak021ifg81u, A comma-separated list of event ids that are associated to an event.

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