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Moderate earthquake, 5.1 mag strikes near Nikiski in Alaska

Earthquake location 60.8398S, -151.8294WA moderate earthquake magnitude 5.1 (ml/mb) has struck on Monday, 33 kilometers (21 miles) from Nikiski in Alaska. Global date and time of event UTC/GMT: 30/05/17 / 2017-05-30 02:18:45 / May 30, 2017 @ 2:18 am. Exact location of earthquake, longitude -151.8294 West, latitude 60.8398 North, depth = 81.9 km. The epicenter was at a depth of 81.9 km (51 miles). The temblor was detected at 17:18:45 / 5:18 pm (local time epicenter). A tsunami warning has been issued near Nikiski in Alaska (Does not indicate if a tsunami actually did or will exist). Event id: ak16139649. Ids that are associated to the earthquake: at00oqquf9, ak16139649.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Sterling, Kalifornsky, Kenai. Close country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 55 km (34 miles) from Kalifornsky (c. 7 900 pop), 44 km (28 miles) from Kenai (c. 7 100 pop), 67 km (42 miles) from Sterling (c. 5 600 pop).

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

Questions or comments?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 33 km WNW of Nikiski, Alaska. This information 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 -151.8294° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.8398° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 81.9 km Depth of the event in kilometers.
Place 33km WNW of Nikiski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-05-30 02:18:45 Time when the event occurred. UTC/GMT
Updated 2017-05-30 02:22:32 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 9 The total number of felt reports
CDI 2.9 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 automatic 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 403 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 ,at,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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.45 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak16139649 Id of event.
Event Code 16139649 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00oqquf9,ak16139649, A comma-separated list of event ids that are associated to an event.

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