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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake, 5.4 mag strikes near Africa


Earthquake location -52.3682S, 16.8983WA moderate earthquake with magnitude 5.4 (ml/mb) was detected on Monday, Southwest of Africa (0 miles). The 5.4-magnitude earthquake was detected at 15:42:43 / 3:42 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 23/10/17 / 2017-10-23 14:42:43 / October 23, 2017 @ 2:42 pm UTC/GMT. Unique identifier: us1000avwk. Ids that are associated to the event: us1000avwk. Exact location, longitude 16.8983° East, latitude -52.3682° South, depth = 10 km. The epicenter was at a depth of 10 km (6 miles).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been four, in the last 10 days five, in the past 30 days five and in the last 365 days six earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 1320 moderate earthquakes in the world each year.

Questions or comments?

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. 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: Southwest of Africa.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude 16.8983° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -52.3682° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place Southwest of Africa Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-23 14:42:43 Time when the event occurred. UTC/GMT
Updated 2017-10-23 15:01:48 Time when the event was most recently updated. UTC/GMT
Timezone offset 60 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 449 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 20.179 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.31 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 95 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 us1000avwk Id of event.
Event Code 1000avwk An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000avwk, A comma-separated list of event ids that are associated to an event.

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