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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.5 quake has struck near Hihifo in Tonga



Earthquake location -16.5828S, -174.3531WA light earthquake with magnitude 4.5 (ml/mb) was reported 95 kilometers (59 miles) from Hihifo in Tonga on Wednesday. Exact location of earthquake, longitude -174.3531 West, latitude -16.5828 South, depth = 61.34 km. The epicenter of the earthquake was roughly 61.34 km (38 miles) below the earth’s surface. Event ids that are associated to the earthquake: us1000886h. Id of event: us1000886h. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 20:37:08 / 8:37 pm (local time epicenter). Exact time and date of earthquake 02/03/17 / 2017-03-02 08:37:08 / March 2, 2017 @ 8:37 am UTC/GMT.

Nearest cities/city/towns to hypocenter/epicentrum was Hihifo (min 5000 pop). Nearby country/countries, Tonga (c. 123 000 pop) (That might be effected). Earthquake epicenter was 92 km (57 miles) from Hihifo (c. 800 pop).

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

Did you feel anything?

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 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: 95 km SW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -174.3531° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.5828° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 61.34 km Depth of the event in kilometers.
Place 95km SW of Hihifo, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-03-02 08:37:08 Time when the event occurred. UTC/GMT
Updated 2017-03-15 13:09:06 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 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 4.89 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 73 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 us1000886h Id of event.
Event Code 1000886h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000886h, A comma-separated list of event ids that are associated to an event.

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