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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.7 mag was detected near Pangai in Tonga


Earthquake location -19.9667S, -174.7986WA light earthquake with magnitude 4.7 (ml/mb) was reported 50 kilometers (31 miles) from Pangai in Tonga on Wednesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 03:39:54 / 3:39 am (local time epicenter). The epicenter of the earthquake was roughly 68.52 km (43 miles) below the earth’s surface. All ids that are associated to the event: us100069sf. Unique identifier: us100069sf. Exact time and date of event in UTC/GMT: 03/08/16 / 2016-08-03 15:39:54 / August 3, 2016 @ 3:39 pm. Exact location of event, depth 68.52 km, -174.7986° West, -19.9667° South.

Nearest cities/city/villages to epicentrum/hypocenter was Pangai (min 5000 pop). Earthquake epicenter was 49 km (31 miles) from Pangai (c. 1 700 pop). Close country/countries, Tonga (c. 123 000 pop) (That might be effected).

Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. 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-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel anything?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 50 km WSW of Pangai, Tonga. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -174.7986° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.9667° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 68.52 km Depth of the event in kilometers.
Place 50km WSW of Pangai, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-08-03 15:39:54 Time when the event occurred. UTC/GMT
Updated 2016-08-22 23:17:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 340 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 4.679 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.14 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 61 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 us100069sf Id of event.
Event Code 100069sf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100069sf, A comma-separated list of event ids that are associated to an event.

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