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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.7 mag, 117 km SSW of Bristol Island, South Sandwich Islands

Posted by admin on January 6, 2018 0 Comments

Earthquake location -59.9107S, -27.6757WA light earthquake magnitude 4.7 (ml/mb) strikes 117 km SSW of Bristol Island, South Sandwich Islands (73 miles) on Wednesday. Event id: us1000c12h. Ids that are associated to the earthquake: us1000c12h. Exact time and date of earthquake 21/12/17 / 2017-12-21 00:09:15 / December 21, 2017 @ 12:09 am UTC/GMT. The epicenter was at a depth of 102.9 km (64 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.7-magnitude earthquake has occurred at 22:09:15 / 10:09 pm (local time epicenter). Exact location of event, longitude -27.6757 West, latitude -59.9107 South, depth = 102.9 km.

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

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 117 km SSW of Bristol Island, South Sandwich Islands.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -27.6757° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -59.9107° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 102.9 km Depth of the event in kilometers.
Place 117km SSW of Bristol Island, South Sandwich Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-21 00:09:15 Time when the event occurred. UTC/GMT
Updated 2018-01-06 01:01:00 Time when the event was most recently updated. UTC/GMT
Timezone offset -120 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 340 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 ,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 8.505 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.61 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 77 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 us1000c12h Id of event.
Event Code 1000c12h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000c12h, A comma-separated list of event ids that are associated to an event.

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