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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Atka in Alaska

Posted by admin on February 2, 2021 0 Comments

Earthquake location 52.4452S, -174.6989WA light earthquake magnitude 4.2 (ml/mb) strikes 43 km NW of Atka, Alaska (27 miles) on Saturday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 16/01/21 / 2021-01-16 03:37:42 / January 16, 2021 @ 3:37 am. The temblor was picked up at 03:37:42 / 3:37 am (local time epicenter). Event ids that are associated to the earthquake: ak021qilvh7. Id of event: ak021qilvh7. Exact location of earthquake, longitude -174.6989 West, latitude 52.4452 North, depth = 227.4 km. The epicenter was at a depth of 227.4 km (141 miles).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been four, in the last 10 days nine, in the past 30 days eighteen and in the last 365 days one hundred and six earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

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. 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: 43 km NW of Atka, Alaska.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -174.6989° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.4452° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 227.4 km Depth of the event in kilometers.
Place 43 km NW of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-16 03:37:42 Time when the event occurred. UTC/GMT
Updated 2021-02-02 21:26:20 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 271 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 0.93 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 ak021qilvh7 Id of event.
Event Code 021qilvh7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak021qilvh7, A comma-separated list of event ids that are associated to an event.

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