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Moderate earthquake, 5 mag has occurred near Little Sitkin Island in Alaska



Earthquake location 51.752S, 178.022WA moderate earthquake magnitude 5 (ml/mb) has occurred on Tuesday, 39 km WSW of Little Sitkin Island, Alaska (24 miles). A tsunami warning has been issued near Little Sitkin Island in Alaska (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 19/09/17 / 2017-09-19 14:49:35 / September 19, 2017 @ 2:49 pm. Exact location, longitude 178.022° East, latitude 51.752° North, depth = 140 km. The temblor was picked up at 04:49:35 / 4:49 am (local time epicenter). All ids that are associated to the event: at00owj7un. Unique identifier: at00owj7un. The epicenter of the earthquake was roughly 140 km (87 miles) below the earth’s surface.

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days eight and in the last 365 days one hundred and fourty-eight earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. Each year there are an estimated 1320 moderate quakes in the world.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 39 km WSW of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 5 mb The magnitude for the event.
Longitude 178.022° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.752° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 140 km Depth of the event in kilometers.
Place 39km WSW 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 2017-09-19 14:49:35 Time when the event occurred. UTC/GMT
Updated 2017-09-19 14:57:01 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 385 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 40 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.8812473 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 169.199986464 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 at00owj7un Id of event.
Event Code 00owj7un An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00owj7un, A comma-separated list of event ids that are associated to an event.

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