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Light earthquake 4.5 mag, 128 km SSW of Adak, Alaska

Posted by admin on December 9, 2024 0 Comments

Earthquake location 50.8236S, -177.4069WA light earthquake with magnitude 4.5 (ml/mb) was detected on Monday, 128 km SSW of Adak, Alaska (80 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 09/12/24 / 2024-12-09 05:21:31 / December 9, 2024 @ 5:21 am. The 4.5-magnitude earthquake has occurred at 05:21:31 / 5:21 am (local time epicenter). Event id: us7000nx9f. Ids that are associated to the earthquake: ak024fszz4or, us7000nx9f. Exact location of earthquake, -177.4069° West, 50.8236° North, depth 10 km. The earthquake was roughly at a depth of 10 km (6 miles).

In the past 24 hours, there have been fourty-two, in the last 10 days fourty-two, in the past 30 days fourty-six and in the last 365 days one hundred and twenty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. 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.

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 128 km SSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -177.4069° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.8236° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 128 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 05:21:31 Time when the event occurred. UTC/GMT
Updated 2024-12-09 08:56:51 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 3.36 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 312 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 76 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.945 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 211 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 us7000nx9f Id of event.
Event Code 7000nx9f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak024fszz4or,us7000nx9f, A comma-separated list of event ids that are associated to an event.

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