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Light earthquake: M4.5 quake strikes near Muara Siberut in Indonesia


Earthquake location -1.8395S, 99.6549WA light earthquake magnitude 4.5 (mg/mb) was reported Wednesday, 56 kilometers (35 miles) from Muara Siberut in Indonesia. The temblor was reported at 23:21:18 / 11:21 pm (local time epicenter) at a depth of 10.3 km (6 miles). Global time of event 01/04/15 / 2015-04-01 16:21:18 / April 1, 2015 @ 4:21 pm UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude 99.6549 East, latitude -1.8395 South, depth 10.3 km, unique identifier, us10001stg.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 56 km ESE of Muara Siberut, Indonesia.


More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 99.6549° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -1.8395° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10.3 km Depth of the event in kilometers.
Place 56km ESE of Muara Siberut, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-04-01 16:21:18 Time when the event occurred. UTC/GMT
Updated 2015-04-01 22:57:15 Time when the event was most recently updated. UTC/GMT
Timezone offset 420 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 2.558 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.45 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 187 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 us10001stg Id of event.
Event Code 10001stg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10001stg, A comma-separated list of event ids that are associated to an event.

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