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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4 mag, 79 km S of Semisopochnoi Island, Alaska

Posted by admin on July 26, 2016 0 Comments

Earthquake location 51.2391S, 179.6291WA light earthquake with magnitude 4 (ml/mb) was detected on Sunday, 79 km S of Semisopochnoi Island, Alaska (49 miles). Exact location of earthquake, 179.6291° East, 51.2391° North, depth 59 km. Exact time and date of event in UTC/GMT: 17/07/16 / 2016-07-17 20:31:47 / July 17, 2016 @ 8:31 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 59 km (37 miles). Event ids that are associated to the earthquake: ak13763020. Id of event: ak13763020. The temblor was detected at 11:31:47 / 11:31 am (local time epicenter).

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

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 79 km S of Semisopochnoi Island, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 179.6291° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.2391° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 59 km Depth of the event in kilometers.
Place 79km S 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 2016-07-17 20:31:47 Time when the event occurred. UTC/GMT
Updated 2016-07-26 07:43:40 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 246 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 32 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 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 230.399981568 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 ak13763020 Id of event.
Event Code 13763020 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13763020, A comma-separated list of event ids that are associated to an event.

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