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Moderate earthquake, 5.4 mag was detected near Adak in Alaska

Posted by admin on September 21, 2024 0 Comments

Earthquake location 51.2239S, -178.5215WA moderate earthquake magnitude 5.4 (ml/mb) has struck on Saturday, 149 km WSW of Adak, Alaska (93 miles). The epicenter was at a depth of 43.373 km (27 miles). A tsunami warning has been issued near Adak in Alaska (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 21/09/24 / 2024-09-21 17:21:18 / September 21, 2024 @ 5:21 pm UTC/GMT. Event ids that are associated to the earthquake: at00sk6avk, ak024c6jnves, us6000ntia. Id of event: us6000ntia. The temblor was picked up at 17:21:18 / 5:21 pm (local time epicenter). Exact location of earthquake, -178.5215° West, 51.2239° North, depth 43.373 km.

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. Each year there are an estimated 1320 moderate quakes in the world. In the past 24 hours, there have been three, in the last 10 days six, in the past 30 days seven and in the last 365 days fifty earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 149 km WSW of Adak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude -178.5215° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.2239° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 43.373 km Depth of the event in kilometers.
Place 149 km WSW 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 2024-09-21 17:21:18 Time when the event occurred. UTC/GMT
Updated 2024-09-21 17:44:35 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 3 The total number of felt reports
CDI 2.7 The maximum reported intensity for the event.
MMI 4.497 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 1 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 449 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 ,at,ak,us, A comma-separated list of network contributors.
Number of Stations Used 297 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.377 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.03 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 54 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us6000ntia Id of event.
Event Code 6000ntia An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00sk6avk,ak024c6jnves,us6000ntia, A comma-separated list of event ids that are associated to an event.

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