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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.4 mag, Volcano Islands, Japan region


Earthquake location 23.5574S, 144.3806WA light earthquake with magnitude 4.4 (ml/mb) was detected on Sunday, Volcano Islands, Japan region (0 miles). Global time and date of event 18/08/18 / 2018-08-18 21:49:19 / August 18, 2018 @ 9:49 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Exact location of earthquake, longitude 144.3806 East, latitude 23.5574 North, depth = 10 km. Event ids that are associated to the earthquake: us1000ggs0. Id of event: us1000ggs0. The 4.4-magnitude earthquake has occurred at 07:49:19 / 7:49 am (local time epicenter).

There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been fourteen, in the last 10 days twenty-six, in the past 30 days twenty-six and in the last 365 days thirty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: Volcano Islands, Japan region. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 144.3806° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 23.5574° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place Volcano Islands, Japan region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-18 21:49:19 Time when the event occurred. UTC/GMT
Updated 2018-09-07 00:21:39 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 298 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 4.044 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.53 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 224 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 us1000ggs0 Id of event.
Event Code 1000ggs0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000ggs0, A comma-separated list of event ids that are associated to an event.

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