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Light earthquake: M4.7 quake has struck near Padangsidempuan in Indonesia


Earthquake location 1.1288S, 99.1988WA light earthquake magnitude 4.7 (ml/mb) has occurred on Tuesday, 27 kilometers (17 miles) from Padangsidempuan in Indonesia. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 03/07/18 / 2018-07-03 14:06:04 / July 3, 2018 @ 2:06 pm UTC/GMT. Exact location, longitude 99.1988° East, latitude 1.1288° North, depth = 97.73 km. The earthquake was roughly at a depth of 97.73 km (61 miles). The temblor was picked up at 21:06:04 / 9:06 pm (local time epicenter). Event ids that are associated to the earthquake: us2000g18j. Id of event: us2000g18j.

Close country/countries that might be effected, Indonesia (c. 242 968 000 pop). Event epicenter was 29 km (18 miles) from Padangsidempuan (c. 100 600 pop), 82 km (51 miles) from Sibolga (c. 79 700 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Sibolga, Padangsidempuan.

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

Questions or comments?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 27 km SSW of Padangsidempuan, Indonesia.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude 99.1988° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 1.1288° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 97.73 km Depth of the event in kilometers.
Place 27km SSW of Padangsidempuan, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-07-03 14:06:04 Time when the event occurred. UTC/GMT
Updated 2018-07-11 18:52:41 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 340 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 1.632 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 131 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 us2000g18j Id of event.
Event Code 2000g18j An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000g18j, A comma-separated list of event ids that are associated to an event.

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