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Light earthquake: M4.3 quake has struck near Tsunō in Japan

Posted by admin on September 12, 2025 0 Comments

Earthquake location 32.1605S, 132.1476WA light earthquake magnitude 4.3 (ml/mb) strikes 55 kilometers (34 miles) from Tsunō in Japan on Monday. Exact location of earthquake, 132.1476° East, 32.1605° North, depth 35 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 18/08/25 / 2025-08-18 22:17:22 / August 18, 2025 @ 10:17 pm. The 4.3-magnitude earthquake has occurred at 22:17:22 / 10:17 pm (local time epicenter). Id of earthquake: us7000qvi5. Event ids that are associated: us7000qvi5.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Saiki, Miyazaki-shi, Tsuma. Earthquake epicenter was 74 km (46 miles) from Miyazaki-shi (c. 311 200 pop), 65 km (41 miles) from Nobeoka (c. 121 900 pop), 91 km (56 miles) from Saiki (c. 49 100 pop), 71 km (44 miles) from Tsuma (c. 34 300 pop), 61 km (38 miles) from Takanabe (c. 22 500 pop). Nearby country/countries that might be effected, Japan (c. 127 288 000 pop).

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

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. 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: 55 km E of Tsunō, Japan.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 132.1476° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 32.1605° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 55 km E of Tsunō, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-18 22:17:22 Time when the event occurred. UTC/GMT
Updated 2025-09-12 05:18:28 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.582 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 203 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 us7000qvi5 Id of event.
Event Code 7000qvi5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qvi5, A comma-separated list of event ids that are associated to an event.

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