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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag was detected near Semisopochnoi Island in Alaska

Posted by admin on July 25, 2015 0 Comments

Earthquake location 52.0658S, 179.6545WA light earthquake magnitude 4.1 (ml/mb) has struck on Saturday, 13 km NNE of Semisopochnoi Island, Alaska (8 miles). Id of earthquake: us20002w2h. Event ids that are associated: ak11641769, us20002w2h. Exact location of event, longitude 179.6545 East, latitude 52.0658 North, depth = 168.67 km. The temblor was picked up at 15:50:51 / 3:50 pm (local time epicenter). The epicenter of the earthquake was roughly 168.67 km (105 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 05/07/15 / 2015-07-05 00:50:51 / July 5, 2015 @ 12:50 am UTC/GMT.

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

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 13 km NNE of Semisopochnoi Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 179.6545° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.0658° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 168.67 km Depth of the event in kilometers.
Place 13km NNE of Semisopochnoi 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 2015-07-05 00:50:51 Time when the event occurred. UTC/GMT
Updated 2015-07-25 04:31:01 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 259 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 0.08 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 116 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 us20002w2h Id of event.
Event Code 20002w2h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11641769,us20002w2h, A comma-separated list of event ids that are associated to an event.

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