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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 22 km SE of Padangsidempuan, Indonesia

Earthquake location 1.2026S, 99.3821WA light earthquake magnitude 4.5 (ml/mb) has struck on Sunday, 22 kilometers (14 miles) from Padangsidempuan in Indonesia. Exact location of earthquake, longitude 99.3821 East, latitude 1.2026 North, depth = 9.55 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 08/07/17 / 2017-07-08 19:34:37 / July 8, 2017 @ 7:34 pm UTC/GMT. The earthquake occurred at a depth of 9.55 km (6 miles) below the earth’s surface. The temblor was detected at 02:34:37 / 2:34 am (local time epicenter). Id of earthquake: us20009w92. Event ids that are associated: us20009w92.

Country/countries that might be effected, Indonesia (c. 242 968 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Sibolga, Padangsidempuan (min 5000 pop). Epicenter of the event was 23 km (14 miles) from Padangsidempuan (c. 100 600 pop), 90 km (56 miles) from Sibolga (c. 79 700 pop).

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

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. 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: 22 km SE of Padangsidempuan, Indonesia.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 99.3821° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 1.2026° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 9.55 km Depth of the event in kilometers.
Place 22km SE 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 2017-07-08 19:34:37 Time when the event occurred. UTC/GMT
Updated 2017-07-16 16:52:10 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 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 1.55 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.91 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 93 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 us20009w92 Id of event.
Event Code 20009w92 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009w92, A comma-separated list of event ids that are associated to an event.

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