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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag has occurred near Nikolski in Alaska


Earthquake location 52.028S, -169.318WA minor earthquake magnitude 3.9 (ml/mb) has struck on Tuesday, 105 km SSW of Nikolski, Alaska (65 miles). Exact location of event, longitude -169.318 West, latitude 52.028 North, depth = 35.1 km. Event ids that are associated to the earthquake: ak11661344, us10002xit. Id of event: us10002xit. Global time and date of event 28/07/15 / 2015-07-28 21:31:46 / July 28, 2015 @ 9:31 pm UTC/GMT. The temblor was picked up at 10:31:46 / 10:31 am (local time epicenter). The earthquake occurred at a depth of 35.1 km (22 miles).

In the past 24 hours, there have been one hundred and eleven, in the last 10 days two hundred and seven, in the past 30 days two hundred and eleven and in the last 365 days two hundred and ninety-one earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 105 km SSW of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -169.318° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.028° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35.1 km Depth of the event in kilometers.
Place 105km 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 2015-07-28 21:31:46 Time when the event occurred. UTC/GMT
Updated 2015-08-23 04:04:58 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 234 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak,us, 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 1.07 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 mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10002xit Id of event.
Event Code 10002xit An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11661344,us10002xit, A comma-separated list of event ids that are associated to an event.

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