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Moderate earthquake, 5.1 mag strikes near Nikolski in Alaska


Earthquake location 52.719S, -169.638WA moderate earthquake with magnitude 5.1 (ml/mb) was detected on Monday, 57 km WSW of Nikolski, Alaska (35 miles). Unique identifier: at00ojj1pg. Ids that are associated to the event: at00ojj1pg. Exact location of earthquake, longitude -169.638 West, latitude 52.719 North, depth = 91 km. The temblor was picked up at 09:20:04 / 9:20 am (local time epicenter). The epicenter of the earthquake was roughly 91 km (57 miles) below the earth’s surface. 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 09/01/17 / 2017-01-09 19:20:04 / January 9, 2017 @ 7:20 pm UTC/GMT.

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

Questions or comments?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 57 km WSW of Nikolski, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -169.638° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.719° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 91 km Depth of the event in kilometers.
Place 57km WSW 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 2017-01-09 19:20:04 Time when the event occurred. UTC/GMT
Updated 2017-01-09 19:24:06 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 32 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5389892 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 197.99998416 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 at00ojj1pg Id of event.
Event Code 00ojj1pg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ojj1pg, A comma-separated list of event ids that are associated to an event.

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