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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.7 mag was detected near Bristol Island in South Sandwich Islands

Posted by admin on December 15, 2018 0 Comments

Earthquake location -58.1821S, -26.5684WA light earthquake magnitude 4.7 (ml/mb) has struck on Wednesday, 94 km N 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 161.35 km (100 miles). Date and time of earthquake in UTC/GMT: 21/11/18 / 2018-11-21 12:32:51 / November 21, 2018 @ 12:32 pm. The temblor was detected at 10:32:51 / 10:32 am (local time epicenter). Exact location of event, longitude -26.5684 West, latitude -58.1821 South, depth = 161.35 km. Unique identifier: us1000hxfm. Ids that are associated to the event: us1000hxfm.

In the past 24 hours, there have been four, in the last 10 days six, in the past 30 days twenty and in the last 365 days sixty-one earthquakes of magnitude 3.0 or greater that was reported nearby. 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.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 94 km N 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 -26.5684° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -58.1821° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 161.35 km Depth of the event in kilometers.
Place 94km N 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 2018-11-21 12:32:51 Time when the event occurred. UTC/GMT
Updated 2018-12-15 13:32:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -120 Timezone offset from UTC in minutes at the event epicenter.
Felt 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 6.768 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 91 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 us1000hxfm Id of event.
Event Code 1000hxfm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hxfm, A comma-separated list of event ids that are associated to an event.

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