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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.6 mag, 87 km SSE of Adak, Alaska

Posted by admin on March 21, 2025 0 Comments

Earthquake location 51.1558S, -176.1139WA light earthquake magnitude 4.6 (ml/mb) strikes 87 km SSE of Adak, Alaska (54 miles) on Friday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -176.1139 West, latitude 51.1558 North, depth = 32.23 km. The 4.6-magnitude earthquake has occurred at 15:46:32 / 3:46 pm (local time epicenter). The earthquake occurred at a depth of 32.23 km (20 miles). Global date and time of event UTC/GMT: 21/03/25 / 2025-03-21 15:46:32 / March 21, 2025 @ 3:46 pm. Id of earthquake: us7000plmb. Event ids that are associated: ak0253ok7763, us7000plmb.

In the past 24 hours, there have been nineteen, in the last 10 days thirty-eight, in the past 30 days fourty-two and in the last 365 days three hundred and sixty-four earthquakes of magnitude 3.0 or greater that was reported nearby. 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.

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 87 km SSE of Adak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -176.1139° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.1558° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 32.23 km Depth of the event in kilometers.
Place 87 km SSE 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 2025-03-21 15:46:32 Time when the event occurred. UTC/GMT
Updated 2025-03-21 16:06:18 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 326 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 68 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.73 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.83 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 189 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 us7000plmb Id of event.
Event Code 7000plmb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak0253ok7763,us7000plmb, A comma-separated list of event ids that are associated to an event.

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