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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near Chichi-shima in Japan

Earthquake location 27.9982S, 139.4555WA light earthquake with magnitude 4.3 (ml/mb) was reported 290 km WNW of Chichi-shima, Japan (180 miles) on Sunday. The 4.3-magnitude earthquake has occurred at 01:04:34 / 1:04 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us2000a7lh. Ids that are associated to the event: us2000a7lh. Exact location of event, longitude 139.4555 East, latitude 27.9982 North, depth = 509.15 km. The earthquake was roughly at a depth of 509.15 km (316 miles). Date and time of earthquake in UTC/GMT: 12/08/17 / 2017-08-12 16:04:34 / August 12, 2017 @ 4:04 pm.

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 eighteen earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

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: 290 km WNW of Chichi-shima, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 139.4555° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 27.9982° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 509.15 km Depth of the event in kilometers.
Place 290km WNW of Chichi-shima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-12 16:04:34 Time when the event occurred. UTC/GMT
Updated 2017-08-12 16:30:38 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 284 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 2.584 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 57 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 us2000a7lh Id of event.
Event Code 2000a7lh An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a7lh, A comma-separated list of event ids that are associated to an event.

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