Minor earthquake, 3.3 mag strikes near Semisopochnoi Island in Alaska

A minor earthquake with magnitude 3.3 (ml/mb) was reported 20 km W of Semisopochnoi Island, Alaska (12 miles) on Friday. The temblor was detected at 13:55:43 / 1:55 pm (local time epicenter). The earthquake occurred at a depth of 162.2 km (101 miles). Exact time and date of event in UTC/GMT: 28/10/16 / 2016-10-28 22:55:43 / October 28, 2016 @ 10:55 pm. Unique identifier: ak14283358. Ids that are associated to the event: ak14283358. Exact location of earthquake, longitude 179.3062 East, latitude 51.948 North, depth = 162.2 km.

Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days five and in the last 365 days one hundred and seventeen earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 20 km W of Semisopochnoi Island, Alaska. This data comes from the USGS Earthquake Notification Service.

Alaska Semisopochnoi Island

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	179.3062° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.948° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	162.2 km	Depth of the event in kilometers.
Place	20km W 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	2016-10-28 22:55:43	Time when the event occurred. UTC/GMT
Updated	2016-10-29 00:33:43	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	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	168	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	0.34 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	ak14283358	Id of event.
Event Code	14283358	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak14283358,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.3 mag strikes near Semisopochnoi Island in Alaska

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