A tsunami warning has been issued afterpowerful twin earthquakes hit Japan on Thursday (Aug 8). A 6.9 magnitude quake was followed by a 7.1 tremor, theUnited States Geological Survey (USGC) said in a statement.
Tsunami advisories were triggered in several regions in the southwestern Japanese islands of Kyushu and Shikoku, with waves up to one metre expected to arrive in the coastal areas, according to public broadcaster NHK.
The first quake struck at a depth of 33 kilometres around 4:42 pm local time (0742 GMT) followed by the second one nearby at a depth of 25 kilometres.
"Tsunamis will strike repeatedly. Please do not enter the sea or approach the coast until the warning is lifted," the Japan Meteorological Agency said on X.
Notable quake, preliminary info: M 7.1 - 19 km SSE of Miyazaki, Japan https://t.co/39ke9ec6eh — USGS Earthquakes (@USGS_Quakes) August 8, 2024
令和6年8月8日16時43分頃に日向灘で発生した地震について、8日17時45分から記者会見を行います。以下URLから中継します。https://t.co/v8hfugNgbM — 気象庁 (@JMA_kishou) August 8, 2024
There were no immediate signs of major damage but the authorities were on high alert and closely monitoring the developments. According to reports, 20-centimetre high waves had already been observed in theMiyazaki prefecture.
A special task force has been constituted by the Japanese government in the aftermath of the quakes, according to a report in AFP.
Watch |Japan Earthquake: Losses to touch $6.4 billion, death toll climbs
This is not the first instance this year when an earthquake measuring seven or upwards on the richer scale has hit Japan. On the afternoon of January 1, a powerful 7.6 quake shook theNoto Peninsula, located on the west coast of the quake-prone country.
The death toll from the quake climbed well over 260 as 30,000 households in theIshikawa region were left without electricity and water for several days.
Japan is located on four major tectonic plates - the Pacific plate, the North American plate, the Philippine plate, and the Eurasian plate.The existence of these four plates, grinding against each other, makes the region very complex and earthquake-prone.
The country, home to around 125 million people, experiences around 1,500 jolts every year and accounts for around 18 per cent of the world's earthquakes.
(With inputs from agencies)