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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake, 5.7 mag has occurred near Hihifo in Tonga


Earthquake location -16.9028S, -172.5586WA moderate earthquake magnitude 5.7 (ml/mb) has occurred on Sunday, 165 km SE of Hihifo, Tonga (103 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 5.7-magnitude earthquake was detected at 12:43:07 / 12:43 pm (local time epicenter). The earthquake occurred at a depth of 92.74 km (58 miles) below the earth’s surface. Exact location of event, longitude -172.5586 West, latitude -16.9028 South, depth = 92.74 km. Unique identifier: us1000gdmg. Ids that are associated to the event: us1000gdmg. Exact time and date of earthquake 20/08/18 / 2018-08-20 00:43:07 / August 20, 2018 @ 12:43 am UTC/GMT.

Each year there are an estimated 1320 moderate quakes 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-two earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 165 km SE of Hihifo, Tonga. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.7 mb The magnitude for the event.
Longitude -172.5586° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.9028° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 92.74 km Depth of the event in kilometers.
Place 165km SE 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 2018-08-20 00:43:07 Time when the event occurred. UTC/GMT
Updated 2018-08-20 01:13:15 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 3.4 The maximum estimated instrumental intensity for the event.
Alert Level green 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 500 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 3.07 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.29 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 106 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 us1000gdmg Id of event.
Event Code 1000gdmg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000gdmg, A comma-separated list of event ids that are associated to an event.

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