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Minor earthquake, 2.8 mag strikes near Little Sitkin Island in Alaska



Earthquake location 51.8788S, 178.2836WA minor earthquake with magnitude 2.8 (ml/mb) was reported 17 km WSW of Little Sitkin Island, Alaska (11 miles) on Friday. The earthquake occurred at a depth of 128 km (80 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 24/10/15 / 2015-10-24 05:01:01 / October 24, 2015 @ 5:01 am. The 2.8-magnitude earthquake was detected at 20:01:01 / 8:01 pm (local time epicenter). All ids that are associated to the event: ak11747201. Unique identifier: ak11747201. Exact location of earthquake, longitude 178.2836 East, latitude 51.8788 North, depth = 128 km.

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days eleven and in the last 365 days one hundred and fifty earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 1,300,000 minor quakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

How would you describe the shaking?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 17 km WSW of Little Sitkin Island, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude 178.2836° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.8788° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 128 km Depth of the event in kilometers.
Place 17km 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 2015-10-24 05:01:01 Time when the event occurred. UTC/GMT
Updated 2015-10-30 20:03:42 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 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 121 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 0.51 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 ak11747201 Id of event.
Event Code 11747201 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11747201, A comma-separated list of event ids that are associated to an event.

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