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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, South Sandwich Islands region

Posted by admin on November 3, 2020 0 Comments

Earthquake location -55.9257S, -27.0887WA light earthquake magnitude 4.5 (ml/mb) has struck on Wednesday, South Sandwich Islands region (0 miles). The epicenter of the earthquake was roughly 35 km (22 miles) below the earth’s surface. The 4.5-magnitude earthquake has occurred at 15:50:51 / 3:50 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -27.0887 West, latitude -55.9257 South, depth = 35 km. Event id: us7000c6bb. Ids that are associated to the earthquake: us7000c6bb. Global time and date of event 21/10/20 / 2020-10-21 15:50:51 / October 21, 2020 @ 3:50 pm UTC/GMT.

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

Did you feel it?

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: South Sandwich Islands region. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -27.0887° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -55.9257° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place South Sandwich Islands region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-10-21 15:50:51 Time when the event occurred. UTC/GMT
Updated 2020-11-03 00:10:04 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 312 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 5.641 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 127 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 us7000c6bb Id of event.
Event Code 7000c6bb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000c6bb, A comma-separated list of event ids that are associated to an event.

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