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Minor earthquake, 3.1 mag was detected near Sitka in Alaska



Earthquake location 57.4346S, -138.5576WA minor earthquake with magnitude 3.1 (ml/mb) was reported 199 km WNW of Sitka, Alaska (124 miles) on Sunday. The earthquake occurred at a depth of 29.5 km (18 miles) below the earth’s surface. Global date and time of event UTC/GMT: 05/10/15 / 2015-10-05 01:26:26 / October 5, 2015 @ 1:26 am. The 3.1-magnitude earthquake has occurred at 16:26:26 / 4:26 pm (local time epicenter). Exact location, longitude -138.5576° West, latitude 57.4346° North, depth = 29.5 km. Event id: ak11730916. Ids that are associated to the earthquake: ak11730916.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days three earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 130,000 minor quakes in the world each year. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Did you feel the quake?

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 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: 199 km WNW of Sitka, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -138.5576° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.4346° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 29.5 km Depth of the event in kilometers.
Place 199km WNW of Sitka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-05 01:26:26 Time when the event occurred. UTC/GMT
Updated 2015-10-09 22:02:44 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 148 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 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 0.76 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 ak11730916 Id of event.
Event Code 11730916 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11730916, A comma-separated list of event ids that are associated to an event.

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