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Moderate earthquake, 5.1 mag has occurred near Amatignak Island in Alaska



Earthquake location 51.329S, -178.449WA moderate earthquake with magnitude 5.1 (ml/mb) was detected on Monday, 46 km E of Amatignak Island, Alaska (29 miles). A tsunami warning has been issued near Amatignak Island in Alaska (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 48 km (30 miles). Id of earthquake: at00ow4y2x. Event ids that are associated: at00ow4y2x. Exact location of earthquake, longitude -178.449 West, latitude 51.329 North, depth = 48 km. Exact time and date of event in UTC/GMT: 11/09/17 / 2017-09-11 21:52:09 / September 11, 2017 @ 9:52 pm. The 5.1-magnitude earthquake has occurred at 11:52:09 / 11:52 am (local time epicenter).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days fourteen and in the last 365 days seven hundred and nine earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 1320 moderate quakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 46 km E of Amatignak Island, Alaska.

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More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -178.449° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.329° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 48 km Depth of the event in kilometers.
Place 46km E of Amatignak 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 2017-09-11 21:52:09 Time when the event occurred. UTC/GMT
Updated 2017-09-11 21:56:38 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 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 400 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 25 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4904801 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.79 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 201.599983872 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mi The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID at00ow4y2x Id of event.
Event Code 00ow4y2x An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ow4y2x, A comma-separated list of event ids that are associated to an event.

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