Light earthquake: M4.5 quake has struck near Atka in Alaska

A light earthquake magnitude 4.5 (ml/mb) has occurred on Tuesday, 97 km SSE of Atka, Alaska (60 miles). The earthquake was roughly at a depth of 32 km (20 miles). A tsunami warning has been issued near Atka in Alaska (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 10:55:15 / 10:55 am (local time epicenter). Exact time and date of event in UTC/GMT: 15/03/16 / 2016-03-15 22:55:15 / March 15, 2016 @ 10:55 pm. Id of earthquake: at00o43ro3. Event ids that are associated: at00o43ro3. Exact location of event, longitude -173.581 West, latitude 51.4129 North, depth = 32 km.

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been two, in the last 10 days fourteen, in the past 30 days eighteen and in the last 365 days two hundred and fourty-nine 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?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 97 km SSE of Atka, Alaska. This information comes from the USGS Earthquake Notification Service.

Alaska Atka

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Parameter	Value	Description
Magnitude	4.5 mb	The magnitude for the event.
Longitude	-173.581° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.4129° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	32 km	Depth of the event in kilometers.
Place	97km SSE of Atka, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2016-03-15 22:55:15	Time when the event occurred. UTC/GMT
Updated	2016-03-15 23:02:25	Time when the event was most recently updated. UTC/GMT
Timezone offset	-720	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	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	312	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	at	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,at,	A comma-separated list of network contributors.
Number of Stations Used	17	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.87675572	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.48 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	219.6	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	at00o43ro3	Id of event.
Event Code	00o43ro3	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,at00o43ro3,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.5 quake has struck near Atka in Alaska

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