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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Little Sitkin Island in Alaska

Earthquake location 51.3255S, 178.8302WA light earthquake magnitude 4.2 (ml/mb) has occurred on Friday, 74 km SSE of Little Sitkin Island, Alaska (46 miles). The epicenter was at a depth of 53.05 km (33 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: ak12967947, us200059zv. Unique identifier: us200059zv. Exact time and date of event in UTC/GMT: 11/03/16 / 2016-03-11 18:16:19 / March 11, 2016 @ 6:16 pm. The 4.2-magnitude earthquake was detected at 08:16:19 / 8:16 am (local time epicenter). Exact location of event, depth 53.05 km, 178.8302° East, 51.3255° North.

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

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 74 km SSE of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 178.8302° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3255° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 53.05 km Depth of the event in kilometers.
Place 74km SSE 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 2016-03-11 18:16:19 Time when the event occurred. UTC/GMT
Updated 2016-04-08 19:06:08 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 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 271 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 ,ak,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 1.492 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.89 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 142 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 us200059zv Id of event.
Event Code 200059zv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak12967947,us200059zv, A comma-separated list of event ids that are associated to an event.

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