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Light earthquake: M4.2 quake has struck near Adak in Alaska

Posted by admin on December 20, 2024 0 Comments

Earthquake location 50.9901S, -177.2879WA light earthquake with magnitude 4.2 (ml/mb) was detected on Sunday, 108 km SSW of Adak, Alaska (67 miles). The temblor was reported at 20:55:07 / 8:55 pm (local time epicenter). The earthquake was roughly at a depth of 10 km (6 miles). Id of earthquake: us7000p0bs. Event ids that are associated: us7000p0bs. 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: 08/12/24 / 2024-12-08 20:55:07 / December 8, 2024 @ 8:55 pm. Exact location, longitude -177.2879° West, latitude 50.9901° North, depth = 10 km.

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one hundred and seventy, in the last 10 days one hundred and seventy-two, in the past 30 days one hundred and seventy-seven and in the last 365 days two hundred and sixty-one earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 108 km SSW of Adak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -177.2879° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.9901° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 108 km SSW of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2024-12-08 20:55:07 Time when the event occurred. UTC/GMT
Updated 2024-12-20 18:48:36 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 us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used 49 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.868 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 198 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000p0bs Id of event.
Event Code 7000p0bs An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000p0bs, A comma-separated list of event ids that are associated to an event.

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