Light earthquake: M4 quake has struck near Adak in Alaska

A light earthquake magnitude 4 (ml/mb) strikes 216 km WSW of Adak, Alaska (134 miles) on Saturday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 20/02/21 / 2021-02-20 04:14:11 / February 20, 2021 @ 4:14 am. Exact location of event, depth 28.61 km, -179.3757° West, 50.9597° North. The epicenter was at a depth of 28.61 km (18 miles). Id of earthquake: us6000djl0. Event ids that are associated: ak0212cevgto, us6000djl0. The temblor was picked up at 04:14:11 / 4:14 am (local time epicenter).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been eleven, in the last 10 days fourteen, in the past 30 days fifteen and in the last 365 days one hundred and seventy earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 13,000 light quakes in the world each year.

Did you feel anything?

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: 216 km WSW of Adak, Alaska.

Adak Alaska

More information

Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	-179.3757° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	50.9597° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	28.61 km	Depth of the event in kilometers.
Place	216 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	2021-02-20 04:14:11	Time when the event occurred. UTC/GMT
Updated	2021-02-20 04:59:26	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	246	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		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.691	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.66 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	229	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	us6000djl0	Id of event.
Event Code	6000djl0	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak0212cevgto,us6000djl0,	A comma-separated list of event ids that are associated to an event.

Earthquakes today

Current and latest world earthquakes breaking news, activity and articles today

Light earthquake: M4 quake has struck near Adak in Alaska

Did you feel anything?

More information

Leave a ReplyCancel reply

Follow us!

Tsunami videos

Categories

Information