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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake: M5.4 quake has struck near Havelu in Tonga


Earthquake location -21.1183S, -175.5379WA moderate earthquake with magnitude 5.4 (ml/mb) was detected on Sunday, 33 kilometers (21 miles) from Havelu in Tonga. Exact time and date of event in UTC/GMT: 24/11/18 / 2018-11-24 15:42:00 / November 24, 2018 @ 3:42 pm. Exact location of event, depth 10 km, -175.5379° West, -21.1183° South. All ids that are associated to the event: us1000hw5j. Unique identifier: us1000hw5j. The temblor was reported at 04:42:00 / 4:42 am (local time epicenter). 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 10 km (6 miles).

Nearest cities/city/villages to epicentrum/hypocenter was ‘Ohonua, Nuku‘alofa (min 5000 pop). Epicenter of the earthquake was 35 km (22 miles) from Nuku‘alofa (c. 22 400 pop), 65 km (41 miles) from ‘Ohonua (c. 1 200 pop). Nearby country/countries, Tonga (c. 123 000 pop) (That might be effected).

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 thirteen earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 1320 moderate earthquakes in the world.

Questions or comments?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 33 km W of Havelu, Tonga.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude -175.5379° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.1183° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 33km W of Havelu, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-11-24 15:42:00 Time when the event occurred. UTC/GMT
Updated 2018-11-24 15:58:50 Time when the event was most recently updated. UTC/GMT
Timezone offset 780 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 449 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 5.65 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.08 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 114 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000hw5j Id of event.
Event Code 1000hw5j An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hw5j, A comma-separated list of event ids that are associated to an event.

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