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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Dili in East Timor


Earthquake location -7.6548S, 128.0476WA light earthquake magnitude 4.3 (ml/mb) has occurred on Thursday, 290 km ENE of Dili, East Timor (180 miles). Global time and date of event 21/09/17 / 2017-09-21 14:45:45 / September 21, 2017 @ 2:45 pm UTC/GMT. Exact location, longitude 128.0476° East, latitude -7.6548° South, depth = 168.4 km. The earthquake was roughly at a depth of 168.4 km (105 miles). The temblor was picked up at 23:45:45 / 11:45 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us2000awpt. Id of event: us2000awpt.

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been three, in the last 10 days five, in the past 30 days nine and in the last 365 days sixty 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.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 290 km ENE of Dili, East Timor.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 128.0476° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -7.6548° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 168.4 km Depth of the event in kilometers.
Place 290km ENE of Dili, East Timor Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-21 14:45:45 Time when the event occurred. UTC/GMT
Updated 2017-10-16 15:25:00 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 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 284 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 3.237 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.09 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 54 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 us2000awpt Id of event.
Event Code 2000awpt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000awpt, A comma-separated list of event ids that are associated to an event.

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