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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.2 mag, 6 km NNE of Tigarunggu, Indonesia


Earthquake location 2.9536S, 98.7408WA light earthquake magnitude 4.2 (ml/mb) strikes 6 kilometers (4 miles) from Tigarunggu in Indonesia on Tuesday. Exact time and date of event in UTC/GMT: 31/01/17 / 2017-01-31 15:10:42 / January 31, 2017 @ 3:10 pm. The earthquake was roughly at a depth of 35 km (22 miles). Exact location of event, depth 35 km, 98.7408° East, 2.9536° North. Event id: us20008jxl. Ids that are associated to the earthquake: us20008jxl. The temblor was reported at 22:10:42 / 10:10 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Belawan, Labuhan Deli, Binjai. Epicenter of the earthquake was 71 km (44 miles) from Medan (c. 1 751 000 pop), 76 km (47 miles) from Percut (c. 311 100 pop), 77 km (48 miles) from Binjai (c. 228 800 pop), 36 km (23 miles) from Pematangsiantar (c. 209 600 pop), 71 km (44 miles) from Sunggal (c. 157 900 pop), 72 km (45 miles) from Perbaungan (c. 157 200 pop). Close country/countries, Indonesia (c. 242 968 000 pop) (That might be effected).

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. In the past 24 hours, there have been five, in the last 10 days five, in the past 30 days seven and in the last 365 days fourteen earthquakes of magnitude 3.0 or greater that was reported nearby.

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: 6 km NNE of Tigarunggu, Indonesia.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 98.7408° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 2.9536° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 6km NNE of Tigarunggu, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-01-31 15:10:42 Time when the event occurred. UTC/GMT
Updated 2017-02-22 16:53:28 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 271 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 0.316 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.63 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 106 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 us20008jxl Id of event.
Event Code 20008jxl An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20008jxl, A comma-separated list of event ids that are associated to an event.

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