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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag strikes near Bristol Island in South Sandwich Islands

Earthquake location -59.2119S, -24.9221WA light earthquake magnitude 4.6 (ml/mb) has struck on Wednesday, 93 km ESE of Bristol Island, South Sandwich Islands (58 miles). 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 10 km (6 miles). Exact time and date of earthquake 07/02/18 / 2018-02-07 21:49:29 / February 7, 2018 @ 9:49 pm UTC/GMT. Exact location of event, longitude -24.9221 West, latitude -59.2119 South, depth = 10 km. The temblor was picked up at 19:49:29 / 7:49 pm (local time epicenter). Unique identifier: us2000d3d7. Ids that are associated to the event: us2000d3d7.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days seven and in the last 365 days fourty-one earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 13,000 light quakes in the world each year.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 93 km ESE of Bristol Island, South Sandwich Islands.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -24.9221° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -59.2119° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 93km ESE 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 2018-02-07 21:49:29 Time when the event occurred. UTC/GMT
Updated 2018-02-25 05:27:13 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 326 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 15.355 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.02 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 84 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 us2000d3d7 Id of event.
Event Code 2000d3d7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d3d7, A comma-separated list of event ids that are associated to an event.

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