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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.7 quake has struck near Adak in Alaska

Posted by admin on December 16, 2024 0 Comments

Earthquake location 50.9626S, -177.523WA light earthquake with magnitude 4.7 (ml/mb) was detected on Monday, 118 km SSW of Adak, Alaska (73 miles). Exact location of earthquake, -177.523° West, 50.9626° North, depth 28.266 km. The 4.7-magnitude earthquake has occurred at 16:33:17 / 4:33 pm (local time epicenter). Global time and date of event 09/12/24 / 2024-12-09 16:33:17 / December 9, 2024 @ 4:33 pm UTC/GMT. The epicenter was at a depth of 28.266 km (18 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: ak024ft6lfkh, us7000ny19. Id of event: us7000ny19.

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 fourty, in the last 10 days one hundred and fourty, in the past 30 days one hundred and fourty-five and in the last 365 days two hundred and thirty-one earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 118 km SSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -177.523° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.9626° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 28.266 km Depth of the event in kilometers.
Place 118 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 16:33:17 Time when the event occurred. UTC/GMT
Updated 2024-12-16 20:50:09 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 340 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 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.82 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 231 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 us7000ny19 Id of event.
Event Code 7000ny19 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak024ft6lfkh,us7000ny19, A comma-separated list of event ids that are associated to an event.

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