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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Adak in Alaska

Posted by admin on December 13, 2024 0 Comments

Earthquake location 50.9275S, -177.1936WA light earthquake magnitude 4.2 (ml/mb) has struck on Monday, 112 km SSW of Adak, Alaska (70 miles). Global date and time of event UTC/GMT: 09/12/24 / 2024-12-09 00:18:10 / December 9, 2024 @ 12:18 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 25.6 km (16 miles) below the earth’s surface. The 4.2-magnitude earthquake has occurred at 00:18:10 / 12:18 am (local time epicenter). All ids that are associated to the event: ak024fswz9jk. Unique identifier: ak024fswz9jk. Exact location, longitude -177.1936° West, latitude 50.9275° North, depth = 25.6 km.

Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one hundred and thirty, in the last 10 days one hundred and thirty-one, in the past 30 days one hundred and thirty-five and in the last 365 days two hundred and nineteen earthquakes of magnitude 3.0 or greater that have been detected nearby.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 112 km SSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -177.1936° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.9275° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.6 km Depth of the event in kilometers.
Place 112 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 2024-12-09 00:18:10 Time when the event occurred. UTC/GMT
Updated 2024-12-13 21:57:15 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 0.26 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 ak024fswz9jk Id of event.
Event Code 024fswz9jk An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak024fswz9jk, A comma-separated list of event ids that are associated to an event.

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