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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag strikes near Sibolga in Indonesia

Posted by admin on March 24, 2017 0 Comments

Earthquake location 1.8376S, 99.0438WA light earthquake magnitude 4.6 (ml/mb) has struck on Saturday, 31 kilometers (19 miles) from Sibolga in Indonesia. The temblor was picked up at 19:12:21 / 7:12 pm (local time epicenter). Exact time and date of earthquake 18/03/17 / 2017-03-18 12:12:21 / March 18, 2017 @ 12:12 pm UTC/GMT. The earthquake occurred at a depth of 143.64 km (89 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude 99.0438° East, latitude 1.8376° North, depth = 143.64 km. Id of earthquake: us20008szt. Event ids that are associated: us20008szt.

Nearest cities/city/towns to hypocenter/epicentrum was Rantauprapat, Bandar, Padangsidempuan (min 5000 pop). Close country/countries that might be effected, Indonesia (c. 242 968 000 pop). Earthquake epicenter was 92 km (57 miles) from Rantauprapat (c. 103 000 pop), 57 km (35 miles) from Padangsidempuan (c. 100 600 pop), 31 km (19 miles) from Sibolga (c. 79 700 pop), 82 km (51 miles) from Bandar (c. 31 400 pop).

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

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. 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 ENE of Sibolga, Indonesia.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 99.0438° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 1.8376° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 143.64 km Depth of the event in kilometers.
Place 31km ENE of Sibolga, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-03-18 12:12:21 Time when the event occurred. UTC/GMT
Updated 2017-03-24 08:31:34 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 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 0.858 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 78 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 us20008szt Id of event.
Event Code 20008szt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20008szt, A comma-separated list of event ids that are associated to an event.

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