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Moderate earthquake, 5.1 mag has occurred near Nikolski in Alaska


Earthquake location 52.593S, -169.153WA moderate earthquake magnitude 5.1 (ml/mb) has struck on Tuesday, 42 km SSW of Nikolski, Alaska (26 miles). The epicenter was at a depth of 52 km (32 miles). Exact location of event, longitude -169.153 West, latitude 52.593 North, depth = 52 km. The 5.1-magnitude earthquake was detected at 19:48:29 / 7:48 pm (local time epicenter). A tsunami warning has been issued near Nikolski in Alaska (Does not indicate if a tsunami actually did or will exist). Global time and date of event 09/08/17 / 2017-08-09 05:48:29 / August 9, 2017 @ 5:48 am UTC/GMT. All ids that are associated to the event: at00ouelgt. Unique identifier: at00ouelgt.

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

Did you feel anything?

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: 42 km SSW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -169.153° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.593° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 52 km Depth of the event in kilometers.
Place 42km SSW of Nikolski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-09 05:48:29 Time when the event occurred. UTC/GMT
Updated 2017-08-09 05:53:47 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 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4213099 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.4 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 205.199983584 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 at00ouelgt Id of event.
Event Code 00ouelgt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ouelgt, A comma-separated list of event ids that are associated to an event.

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