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Minor earthquake, 2.9 mag was detected near Semisopochnoi Island in Alaska

Posted by admin on July 29, 2016 0 Comments

Earthquake location 51.6489S, -179.8431WA minor earthquake magnitude 2.9 (ml/mb) has occurred on Thursday, 51 km SE of Semisopochnoi Island, Alaska (32 miles). The epicenter of the earthquake was roughly 81.2 km (50 miles) below the earth’s surface. Exact location of earthquake, longitude -179.8431 West, latitude 51.6489 North, depth = 81.2 km. Unique identifier: ak13792190. Ids that are associated to the event: ak13792190. The temblor was detected at 22:04:10 / 10:04 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 22/07/16 / 2016-07-22 10:04:10 / July 22, 2016 @ 10:04 am.

Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been 0, in the last 10 days two, in the past 30 days six and in the last 365 days fifty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Did you feel it?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 51 km SE of Semisopochnoi Island, Alaska.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -179.8431° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.6489° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 81.2 km Depth of the event in kilometers.
Place 51km SE 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 2016-07-22 10:04:10 Time when the event occurred. UTC/GMT
Updated 2016-07-29 16:26:17 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 129 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 26 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 0.51 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 158.399987328 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 ak13792190 Id of event.
Event Code 13792190 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13792190, A comma-separated list of event ids that are associated to an event.

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