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Minor earthquake, 3.3 mag was detected near Chiniak in Alaska


Earthquake location 56.2371S, -149.1444WA minor earthquake with magnitude 3.3 (ml/mb) was reported 244 km SE of Chiniak, Alaska (152 miles) on Friday. Exact location of event, depth 22.96 km, -149.1444° West, 56.2371° North. Unique identifier: us7000d2gy. Ids that are associated to the event: ak02110o4ama, us7000d2gy. The 3.3-magnitude earthquake has occurred at 17:29:08 / 5:29 pm (local time epicenter). Global time and date of event 22/01/21 / 2021-01-22 17:29:08 / January 22, 2021 @ 5:29 pm UTC/GMT. The earthquake occurred at a depth of 22.96 km (14 miles) below the earth’s surface.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days eight and in the last 365 days one hundred and seventy-seven earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 244 km SE of Chiniak, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -149.1444° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.2371° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 22.96 km Depth of the event in kilometers.
Place 244 km SE of Chiniak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-22 17:29:08 Time when the event occurred. UTC/GMT
Updated 2021-01-22 18:44:28 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 reviewed 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 us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak,us, 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 2.437 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 182 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 us7000d2gy Id of event.
Event Code 7000d2gy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak02110o4ama,us7000d2gy, A comma-separated list of event ids that are associated to an event.

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