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Strong earthquake, 6 mag strikes near Shemya Island in Alaska


Earthquake location 52.2436S, 174.2012WA earthquake magnitude 6 (ml/mb) has occurred on Saturday, 53 km S of Shemya Island, Alaska (33 miles). Exact time and date of event in UTC/GMT: 03/12/16 / 2016-12-03 09:23:34 / December 3, 2016 @ 9:23 am. A tsunami warning has been issued near Shemya Island in Alaska (Does not indicate if a tsunami actually did or will exist). The 6-magnitude earthquake has occurred at 21:23:34 / 9:23 pm (local time epicenter). The epicenter was at a depth of 26.87 km (17 miles). Exact location, longitude 174.2012° East, latitude 52.2436° North, depth = 26.87 km. Event id: us10007ekb. Ids that are associated to the earthquake: at00ohlrfc, us10007ekb, ak14549735.

Each year there are an estimated 135 quakes in the world. Earthquakes 6.0 to 6.9 may cause a lot of damage in very populated areas. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days four and in the last 365 days seventeen earthquakes of magnitude 3.0 or greater that has occurred nearby.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 53 km S of Shemya Island, Alaska.

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More information

Parameter Value Description
Magnitude 6 mb The magnitude for the event.
Longitude 174.2012° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.2436° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 26.87 km Depth of the event in kilometers.
Place 53km S of Shemya 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 2016-12-03 09:23:34 Time when the event occurred. UTC/GMT
Updated 2016-12-03 09:59:35 Time when the event was most recently updated. UTC/GMT
Timezone offset 720 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 3.3 The maximum reported intensity for the event.
MMI 4.3 The maximum estimated instrumental intensity for the event.
Alert Level green 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 1 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 555 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 ,at,us,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 0.491 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 42 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10007ekb Id of event.
Event Code 10007ekb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ohlrfc,us10007ekb,ak14549735, A comma-separated list of event ids that are associated to an event.

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