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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Tanaga Volcano in Alaska

Posted by admin on September 1, 2017 0 Comments

Earthquake location 51.5925S, -178.4669WA light earthquake with magnitude 4 (ml/mb) was reported 39 km SW of Tanaga Volcano, Alaska (24 miles) on Thursday. Id of earthquake: us2000a778. Event ids that are associated: ak16494585, us2000a778. Exact location of earthquake, -178.4669° West, 51.5925° North, depth 16.91 km. Exact time and date of earthquake 11/08/17 / 2017-08-11 04:50:19 / August 11, 2017 @ 4:50 am UTC/GMT. The 4-magnitude earthquake was detected at 18:50:19 / 6:50 pm (local time epicenter). 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 16.91 km (11 miles).

In the past 24 hours, there have been seven, in the last 10 days fifteen, in the past 30 days twenty-four and in the last 365 days six hundred and ninety-two earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

How would you describe the shaking?

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: 39 km SW of Tanaga Volcano, 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 -178.4669° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5925° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 16.91 km Depth of the event in kilometers.
Place 39km SW of Tanaga Volcano, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-11 04:50:19 Time when the event occurred. UTC/GMT
Updated 2017-09-01 23:24:35 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 2.62 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 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 0.254 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.91 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 185 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 us2000a778 Id of event.
Event Code 2000a778 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16494585,us2000a778, A comma-separated list of event ids that are associated to an event.

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