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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag was detected near Sikabaluan in Indonesia

Earthquake location 0.0406S, 97.8598WA light earthquake magnitude 4.1 (ml/mb) has occurred on Thursday, 179 km NW of Sikabaluan, Indonesia (111 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 21/01/16 / 2016-01-21 13:00:31 / January 21, 2016 @ 1:00 pm UTC/GMT. The 4.1-magnitude earthquake has occurred at 20:00:31 / 8:00 pm (local time epicenter). The earthquake was roughly at a depth of 29.71 km (18 miles). Event ids that are associated to the earthquake: us20004us9. Id of event: us20004us9. Exact location of event, longitude 97.8598 East, latitude 0.0406 North, depth = 29.71 km.

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 179 km NW of Sikabaluan, Indonesia.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 97.8598° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 0.0406° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 29.71 km Depth of the event in kilometers.
Place 179km NW of Sikabaluan, Indonesia Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-01-21 13:00:31 Time when the event occurred. UTC/GMT
Updated 2016-02-14 20:09:39 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 259 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 1.286 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 215 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 us20004us9 Id of event.
Event Code 20004us9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20004us9, A comma-separated list of event ids that are associated to an event.

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