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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Kotabumi in Indonesia

Earthquake location -4.8705S, 104.6152WA light earthquake with magnitude 4.3 (ml/mb) was reported 31 kilometers (19 miles) from Kotabumi in Indonesia on Wednesday. The temblor was reported at 02:23:02 / 2:23 am (local time epicenter). All ids that are associated to the event: us1000861d. Unique identifier: us1000861d. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 138.64 km (86 miles). Date and time of earthquake in UTC/GMT: 21/02/17 / 2017-02-21 19:23:02 / February 21, 2017 @ 7:23 pm. Exact location of event, longitude 104.6152 East, latitude -4.8705 South, depth = 138.64 km.

Nearest cities/city/villages to epicentrum/hypocenter was Metro, Terbanggi Besar, Kotabumi (min 5000 pop). Event epicenter was 81 km (50 miles) from Metro (c. 149 500 pop), 67 km (42 miles) from Terbanggi Besar (c. 52 600 pop), 30 km (19 miles) from Kotabumi (c. 42 400 pop). Close country/countries that might be effected, Indonesia (c. 242 968 000 pop).

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

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 31 km W of Kotabumi, Indonesia.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 104.6152° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -4.8705° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 138.64 km Depth of the event in kilometers.
Place 31km W of Kotabumi, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-02-21 19:23:02 Time when the event occurred. UTC/GMT
Updated 2017-03-07 18:43:05 Time when the event was most recently updated. UTC/GMT
Timezone offset 420 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 284 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 1.73 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.87 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 130 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 us1000861d Id of event.
Event Code 1000861d An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000861d, A comma-separated list of event ids that are associated to an event.

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