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World Magnitude 2.5+ Earthquakes

Earthquake 4.5 mag, 160 km SSE of Hihifo, Tonga


Earthquake location -17.1962S, -172.9724WAn earthquake with magnitude 4.5 mg/mb has occurred in 160 km SSE of Hihifo, Tonga. Time of event: Saturday 16th August @ 2:37 am UTC. Location of event: -172.9724S, -17.1962W, depth=46.92 km. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about quake recorded in: 160 km SSE of Hihifo, Tonga. Did you feel it? Leave a comment or report about shaking, activity and damage at your home, city and country.


More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -172.9724° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -17.1962° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 46.92 km Depth of the event in kilometers.
Place 160km SSE 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 2014-08-16 02:37:15 Time when the event occurred. UTC/GMT
Updated 2014-08-16 03:06:38 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 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 22.716 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.22 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 67 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 usb000s39l Id of event.
Event Code b000s39l An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS usb000s39l A comma-separated list of event ids that are associated to an event.

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