Earthquakes today

Current and latest world earthquakes breaking news, activity and articles today

Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake: M5.1 quake has struck near Hihifo in Tonga


Earthquake location -16.3069S, -172.8918WA moderate earthquake magnitude 5.1 (ml/mb) strikes 99 kilometers (62 miles) from Hihifo in Tonga on Thursday. The earthquake occurred at a depth of 10 km (6 miles). Exact location of earthquake, longitude -172.8918 West, latitude -16.3069 South, depth = 10 km. The temblor was detected at 03:08:46 / 3:08 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us1000c130. Ids that are associated to the earthquake: us1000c130. Global time and date of event 21/12/17 / 2017-12-21 15:08:46 / December 21, 2017 @ 3:08 pm UTC/GMT.

Nearest cities/city/towns to hypocenter/epicentrum was Hihifo (min 5000 pop). Event epicenter was 104 km (65 miles) from Hihifo (c. 800 pop). Close 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. Each year there are an estimated 1320 moderate earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days five and in the last 365 days fourty-three earthquakes of magnitude 3.0 or greater that have been detected nearby.

How would you describe the shaking?

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 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: 99 km ESE of Hihifo, Tonga.

Copyright © 2018 earthquakenewstoday.com All rights reserved.


More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -172.8918° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.3069° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 99km ESE 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 2017-12-21 15:08:46 Time when the event occurred. UTC/GMT
Updated 2018-01-16 16:56:21 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 400 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 2.615 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.3 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 72 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 us1000c130 Id of event.
Event Code 1000c130 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000c130, A comma-separated list of event ids that are associated to an event.

Leave a Reply