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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 90 km SSW of Adak, Alaska


Earthquake location 51.1115S, -177.0678WA light earthquake magnitude 4.5 (ml/mb) has occurred on Monday, 90 km SSW of Adak, Alaska (56 miles). The epicenter of the earthquake was roughly 14.8 km (9 miles) below the earth’s surface. The temblor was picked up at 00:17:26 / 12:17 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: ak024fswz33c. Event ids that are associated: ak024fswz33c. Exact location of event, longitude -177.0678 West, latitude 51.1115 North, depth = 14.8 km. Global date and time of event UTC/GMT: 09/12/24 / 2024-12-09 00:17:26 / December 9, 2024 @ 12:17 am.

Each year there are an estimated 13,000 light earthquakes in the world. 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 twenty-eight earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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. 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: 90 km SSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -177.0678° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.1115° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14.8 km Depth of the event in kilometers.
Place 90 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 00:17:26 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 312 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 0.68 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 ak024fswz33c Id of event.
Event Code 024fswz33c An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak024fswz33c, A comma-separated list of event ids that are associated to an event.

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