Minor earthquake: M2.8 quake has struck near Semisopochnoi Island in Alaska

A minor earthquake magnitude 2.8 (ml/mb) has struck on Tuesday, 91 km SSW of Semisopochnoi Island, Alaska (57 miles). The earthquake was roughly at a depth of 20 km (12 miles). Date and time of earthquake in UTC/GMT: 30/06/15 / 2015-06-30 19:46:30 / June 30, 2015 @ 7:46 pm. Id of earthquake: ak11638733. Event ids that are associated: ak11638733. The 2.8-magnitude earthquake has occurred at 10:46:30 / 10:46 am (local time epicenter). Exact location of earthquake, longitude 179.2293 East, latitude 51.1655 North, depth = 20 km.

There are an estimated 1,300,000 minor earthquakes in the world each year. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days eleven and in the last 365 days one hundred and sixty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

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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 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: 91 km SSW of Semisopochnoi Island, Alaska.

Alaska Semisopochnoi Island

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Parameter	Value	Description
Magnitude	2.8 mb	The magnitude for the event.
Longitude	179.2293° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.1655° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	20 km	Depth of the event in kilometers.
Place	91km SSW 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	2015-06-30 19:46:30	Time when the event occurred. UTC/GMT
Updated	2015-07-09 22:23:16	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	1	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	121	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	11	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	0.35 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	226.799981856	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	ak11638733	Id of event.
Event Code	11638733	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak11638733,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M2.8 quake has struck near Semisopochnoi Island in Alaska

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