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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake, 5 mag has occurred near `Ohonua in Tonga


Earthquake location -20.8412S, -174.6519WA moderate earthquake with magnitude 5 (ml/mb) was detected on Sunday, 62 kilometers (39 miles) from `Ohonua in Tonga. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 27.31 km (17 miles). Exact location of event, longitude -174.6519 West, latitude -20.8412 South, depth = 27.31 km. The temblor was picked up at 04:43:54 / 4:43 am (local time epicenter). Date and time of earthquake in UTC/GMT: 12/08/18 / 2018-08-12 16:43:54 / August 12, 2018 @ 4:43 pm. Event ids that are associated to the earthquake: us1000g79c. Id of event: us1000g79c.

Nearby country/countries, Tonga (c. 123 000 pop) (That might be effected). The epicenter was 66 km (41 miles) from Nuku‘alofa (c. 22 400 pop), 63 km (39 miles) from ‘Ohonua (c. 1 200 pop). Nearest cities/city/towns to hypocenter/epicentrum was Nuku‘alofa, ‘Ohonua (min 5000 pop).

Every year there are an estimated 1320 moderate earthquakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. 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-seven earthquakes of magnitude 3.0 or greater that have been detected nearby.

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 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: 62 km NNE of `Ohonua, Tonga.

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More information

Parameter Value Description
Magnitude 5 mb The magnitude for the event.
Longitude -174.6519° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.8412° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 27.31 km Depth of the event in kilometers.
Place 62km NNE of `Ohonua, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-12 16:43:54 Time when the event occurred. UTC/GMT
Updated 2018-08-12 17:13:41 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 385 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 4.778 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.88 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 64 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 us1000g79c Id of event.
Event Code 1000g79c An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000g79c, A comma-separated list of event ids that are associated to an event.

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