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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Hihifo in Tonga


Earthquake location -15.4357S, -174.8407WA light earthquake magnitude 4.5 (ml/mb) has occurred on Wednesday, 130 km WNW of Hihifo, Tonga (81 miles). Exact location of earthquake, -174.8407° West, -15.4357° South, depth 278.69 km. Global date and time of event UTC/GMT: 12/09/19 / 2019-09-12 02:38:40 / September 12, 2019 @ 2:38 am. The earthquake was roughly at a depth of 278.69 km (173 miles). The temblor was picked up at 14:38:40 / 2:38 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us70005f8f. Ids that are associated to the earthquake: us70005f8f.

Every 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 twenty-three earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

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. 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: 130 km WNW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -174.8407° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.4357° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 278.69 km Depth of the event in kilometers.
Place 130km WNW 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 2019-09-12 02:38:40 Time when the event occurred. UTC/GMT
Updated 2019-09-12 02:58:24 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 3.33 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.03 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 65 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 us70005f8f Id of event.
Event Code 70005f8f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70005f8f, A comma-separated list of event ids that are associated to an event.

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