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Minor earthquake: M3.3 quake has struck near Nikolski in Alaska


Earthquake location 52.0582S, -169.342WA minor earthquake magnitude 3.3 (ml/mb) has struck on Tuesday, 103 km SSW of Nikolski, Alaska (64 miles). Global time and date of event 12/08/15 / 2015-08-12 10:05:13 / August 12, 2015 @ 10:05 am UTC/GMT. Exact location of event, longitude -169.342 West, latitude 52.0582 North, depth = 34.4 km. The earthquake was roughly at a depth of 34.4 km (21 miles). The temblor was detected at 23:05:13 / 11:05 pm (local time epicenter). Unique identifier: ak11676350. Ids that are associated to the event: ak11676350.

There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been five, in the last 10 days thirty, in the past 30 days one hundred and ninety-nine and in the last 365 days two hundred and eighty-two earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

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. 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: 103 km SSW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -169.342° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.0582° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 34.4 km Depth of the event in kilometers.
Place 103km 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 2015-08-12 10:05:13 Time when the event occurred. UTC/GMT
Updated 2015-08-21 01:06:47 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 0 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 168 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 ,ak, A comma-separated list of network contributors.
Number of Stations Used 34 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 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 208.799983296 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 ak11676350 Id of event.
Event Code 11676350 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11676350, A comma-separated list of event ids that are associated to an event.

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