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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.5 mag, 116 km ESE of Hachijo-jima, Japan

Earthquake location 32.7244S, 140.9675WA light earthquake with magnitude 4.5 (ml/mb) was reported 116 km ESE of Hachijo-jima, Japan (72 miles) on Saturday. The temblor was picked up at 03:40:20 / 3:40 am (local time epicenter). Global time and date of event 05/10/18 / 2018-10-05 18:40:20 / October 5, 2018 @ 6:40 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, 140.9675° East, 32.7244° North, depth 42.13 km. Unique identifier: us1000h7qr. Ids that are associated to the event: us1000h7qr. The earthquake occurred at a depth of 42.13 km (26 miles) below the earth’s surface.

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

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 116 km ESE of Hachijo-jima, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 140.9675° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 32.7244° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42.13 km Depth of the event in kilometers.
Place 116km ESE of Hachijo-jima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-05 18:40:20 Time when the event occurred. UTC/GMT
Updated 2018-10-30 22:04:30 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 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 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 1.045 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 147 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 us1000h7qr Id of event.
Event Code 1000h7qr An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h7qr, A comma-separated list of event ids that are associated to an event.

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