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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Naha-shi in Japan

Earthquake location 26.4013S, 127.2946WA light earthquake magnitude 4.5 (ml/mb) strikes 43 kilometers (27 miles) from Naha-shi in Japan on Tuesday. Unique identifier: us2000a7bx. Ids that are associated to the event: us2000a7bx. Exact location of event, longitude 127.2946 East, latitude 26.4013 North, depth = 51.28 km. Date and time of earthquake in UTC/GMT: 08/08/17 / 2017-08-08 08:51:39 / August 8, 2017 @ 8:51 am. 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 51.28 km (32 miles) below the earth’s surface. The temblor was reported at 16:51:39 / 4:51 pm (local time epicenter).

The epicenter was 44 km (27 miles) from Naha-shi (c. 300 800 pop), 51 km (32 miles) from Okinawa (c. 125 500 pop), 49 km (30 miles) from Ginowan (c. 91 800 pop), 57 km (36 miles) from Gushikawa (c. 65 300 pop), 73 km (45 miles) from Nago (c. 59 600 pop), 48 km (30 miles) from Itoman (c. 57 200 pop), 45 km (28 miles) from Tomigusuku (c. 55 700 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Nago, Katsuren-haebaru, Gushikawa. Nearby country/countries that might be effected, Japan (c. 127 288 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days three and in the last 365 days eleven earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 13,000 light earthquakes in the world each year.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 43 km WNW of Naha-shi, Japan.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 127.2946° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 26.4013° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 51.28 km Depth of the event in kilometers.
Place 43km WNW of Naha-shi, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-08 08:51:39 Time when the event occurred. UTC/GMT
Updated 2017-08-18 08:02:39 Time when the event was most recently updated. UTC/GMT
Timezone offset 480 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2 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 0.976 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 102 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 us2000a7bx Id of event.
Event Code 2000a7bx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a7bx, A comma-separated list of event ids that are associated to an event.

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