Minor earthquake, 3.8 mag has occurred near Unalaska in Alaska

A minor earthquake magnitude 3.8 (ml/mb) has occurred on Monday, 129 km S of Unalaska, Alaska (80 miles). Exact time and date of event in UTC/GMT: 21/10/24 / 2024-10-21 03:04:16 / October 21, 2024 @ 3:04 am. The epicenter of the earthquake was roughly 35.7 km (22 miles) below the earth’s surface. Exact location of earthquake, -166.7146° West, 52.7157° North, depth 35.7 km. The temblor was reported at 03:04:16 / 3:04 am (local time epicenter). Id of earthquake: ak024djxckmb. Event ids that are associated: ak024djxckmb.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days seventeen and in the last 365 days thirty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 129 km S of Unalaska, Alaska.

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Parameter	Value	Description
Magnitude	3.8 mb	The magnitude for the event.
Longitude	-166.7146° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.7157° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35.7 km	Depth of the event in kilometers.
Place	129 km S of Unalaska, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2024-10-21 03:04:16	Time when the event occurred. UTC/GMT
Updated	2024-10-21 05:40:12	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	2.711	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	222	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	0.99 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	ak024djxckmb	Id of event.
Event Code	024djxckmb	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak024djxckmb,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.8 mag has occurred near Unalaska in Alaska

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