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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.7 quake has struck near Bristol Island in South Sandwich Islands



Earthquake location -59.6358S, -26.395WA light earthquake with magnitude 4.7 (ml/mb) was reported 67 km S of Bristol Island, South Sandwich Islands (42 miles) on Saturday. The 4.7-magnitude earthquake has occurred at 04:22:16 / 4:22 am (local time epicenter). Date and time of earthquake in UTC/GMT: 12/12/15 / 2015-12-12 06:22:16 / December 12, 2015 @ 6:22 am. Exact location, longitude -26.395° West, latitude -59.6358° South, depth = 93.15 km. The earthquake occurred at a depth of 93.15 km (58 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us20004hjx. Event ids that are associated: us20004hjx.

In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days five and in the last 365 days twenty-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. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 67 km S of Bristol Island, South Sandwich Islands. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -26.395° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -59.6358° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 93.15 km Depth of the event in kilometers.
Place 67km S 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 2015-12-12 06:22:16 Time when the event occurred. UTC/GMT
Updated 2016-01-08 10:07:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -120 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 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 18.084 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.54 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 70 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 us20004hjx Id of event.
Event Code 20004hjx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20004hjx, A comma-separated list of event ids that are associated to an event.

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