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Moderate earthquake, 5.3 mag strikes near Little Sitkin Island in Alaska

Earthquake location 51.3186S, 178.6492WA moderate earthquake magnitude 5.3 (ml/mb) has struck on Friday, 70 km S of Little Sitkin Island, Alaska (43 miles). The earthquake occurred at a depth of 54.07 km (34 miles). Global date and time of event UTC/GMT: 27/04/17 / 2017-04-27 14:46:37 / April 27, 2017 @ 2:46 pm. Exact location of earthquake, 178.6492° East, 51.3186° North, depth 54.07 km. A tsunami warning has been issued near Little Sitkin Island in Alaska (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us10008lai. Event ids that are associated: at00op2p1m, us10008lai. The temblor was reported at 02:46:37 / 2:46 am (local time epicenter).

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

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 70 km S of Little Sitkin Island, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.3 mb The magnitude for the event.
Longitude 178.6492° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3186° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 54.07 km Depth of the event in kilometers.
Place 70km S 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 2017-04-27 14:46:37 Time when the event occurred. UTC/GMT
Updated 2017-04-27 15:25:40 Time when the event was most recently updated. UTC/GMT
Timezone offset 720 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 432 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 2.672 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.98 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 80 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 us10008lai Id of event.
Event Code 10008lai An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00op2p1m,us10008lai, A comma-separated list of event ids that are associated to an event.

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