Light earthquake: M4 quake has struck near Amahusu in Indonesia

A light earthquake magnitude 4 (ml/mb) has struck on Saturday, 271 km SSE of Amahusu, Indonesia (168 miles). Exact location of event, depth 306.8 km, 128.6773° East, -6.1267° South. Id of earthquake: us2000awr4. Event ids that are associated: us2000awr4. Exact time and date of event in UTC/GMT: 22/09/17 / 2017-09-22 20:16:05 / September 22, 2017 @ 8:16 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 05:16:05 / 5:16 am (local time epicenter). The epicenter was at a depth of 306.8 km (191 miles).

In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days four and in the last 365 days fourty-three 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. There are an estimated 13,000 light quakes in the world each year.

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 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: 271 km SSE of Amahusu, Indonesia.

Amahusu Indonesia

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	128.6773° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-6.1267° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	306.8 km	Depth of the event in kilometers.
Place	271km SSE of Amahusu, Indonesia	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-09-22 20:16:05	Time when the event occurred. UTC/GMT
Updated	2017-10-21 18:00:32	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	246	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	3.188	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.57 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	82	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	us2000awr4	Id of event.
Event Code	2000awr4	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us2000awr4,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4 quake has struck near Amahusu in Indonesia

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