Minor earthquake, 3.1 mag strikes near Semisopochnoi Island in Alaska

A minor earthquake magnitude 3.1 (ml/mb) strikes 68 km S of Semisopochnoi Island, Alaska (42 miles) on Sunday. Unique identifier: us2000ae08. Ids that are associated to the event: ak16585085, us2000ae08. The temblor was picked up at 02:28:35 / 2:28 am (local time epicenter). The earthquake was roughly at a depth of 30.2 km (19 miles). Exact time and date of event in UTC/GMT: 20/08/17 / 2017-08-20 12:28:35 / August 20, 2017 @ 12:28 pm. Exact location of event, depth 30.2 km, 179.452° East, 51.3437° North.

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been four, in the last 10 days seven, in the past 30 days twelve and in the last 365 days one hundred and fifty-six earthquakes of magnitude 3.0 or greater that has struck near.

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How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 68 km S of Semisopochnoi Island, Alaska.

Alaska Semisopochnoi Island

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Parameter	Value	Description
Magnitude	3.1 mb	The magnitude for the event.
Longitude	179.452° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.3437° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	30.2 km	Depth of the event in kilometers.
Place	68km S of Semisopochnoi Island, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-08-20 12:28:35	Time when the event occurred. UTC/GMT
Updated	2017-09-02 08:18:17	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	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	148	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	0.101	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.3 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	212	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	us2000ae08	Id of event.
Event Code	2000ae08	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak16585085,us2000ae08,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.1 mag strikes near Semisopochnoi Island in Alaska

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