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Light earthquake 4.9 mag, 12 km NW of Little Sitkin Island, Alaska



Earthquake location 52.022S, 178.3734WA light earthquake with magnitude 4.9 (ml/mb) was reported 12 km NW of Little Sitkin Island, Alaska (7 miles) on Friday. All ids that are associated to the event: at00o1qw00, us20004vvs. Unique identifier: us20004vvs. The 4.9-magnitude earthquake has occurred at 16:52:48 / 4:52 pm (local time epicenter). Global time and date of event 30/01/16 / 2016-01-30 02:52:48 / January 30, 2016 @ 2:52 am UTC/GMT. The earthquake occurred at a depth of 100.3 km (62 miles) below the earth’s surface. Exact location, longitude 178.3734° East, latitude 52.022° North, depth = 100.3 km. A tsunami warning has been issued near Little Sitkin Island in Alaska (Does not indicate if a tsunami actually did or will exist).

There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days one hundred and twenty-one earthquakes of magnitude 3.0 or greater that has struck near.

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 12 km NW of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude 178.3734° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.022° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 100.3 km Depth of the event in kilometers.
Place 12km NW of Little Sitkin Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-01-30 02:52:48 Time when the event occurred. UTC/GMT
Updated 2016-01-30 03:13:05 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 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 369 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 ,at,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 2.712 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.77 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 89 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 us20004vvs Id of event.
Event Code 20004vvs An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00o1qw00,us20004vvs, A comma-separated list of event ids that are associated to an event.

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