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Minor earthquake, 2.8 mag strikes near Semisopochnoi Island in Alaska


Earthquake location 51.7431S, 179.6409WA minor earthquake magnitude 2.8 (ml/mb) strikes 23 km S of Semisopochnoi Island, Alaska (14 miles) on Thursday. Exact location of earthquake, 179.6409° East, 51.7431° North, depth 86 km. The temblor was picked up at 05:10:37 / 5:10 am (local time epicenter). Event id: us10006304. Ids that are associated to the earthquake: ak13742694, us10006304. The epicenter of the earthquake was roughly 86 km (53 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 07/07/16 / 2016-07-07 14:10:37 / July 7, 2016 @ 2:10 pm.

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

Did you feel it?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 23 km S of Semisopochnoi Island, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude 179.6409° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.7431° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 86 km Depth of the event in kilometers.
Place 23km 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 2016-07-07 14:10:37 Time when the event occurred. UTC/GMT
Updated 2016-08-01 14:03:02 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 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.31 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 us10006304 Id of event.
Event Code 10006304 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13742694,us10006304, A comma-separated list of event ids that are associated to an event.

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