Tsunami Waves Reach Japan After Earthquake Off Southern Philippines
Tsunami waves arrived in Okinawa and other parts of Japan following an earthquake off the southern Philippines. A tsunami advisory was issued for Japan’s southern coastline, and waves of up to 1 meter were expected. Reports differ on the earthquake’s magnitude, with one source citing 7.8 and another 8.2. Separate earthquakes were recorded off Japan’s north and northeast coasts on different dates.
Tsunami waves arrived in Okinawa and other parts of Japan after an earthquake off the southern Philippines. The Japan Meteorological Agency (JMA) issued a tsunami advisory for Japan's southern coastline, from Ibaraki Prefecture to Okinawa Prefecture, according to bluesky and mainichi.jp. A maximum of 1-meter high waves was expected. A 20-centimeter tsunami was observed at Chichijima Island in the Ogasawara Islands around 1:46 p.m., and a tsunami was observed in the main island of Okinawa at around 12:18 p.m., according to mainichi.jp.
The earthquake off the southern Philippines had a preliminary magnitude of 7.8, according to other and sea_th. Another source, bluesky, reported a magnitude 8.2 earthquake struck off the coast of the Philippines. The earthquake was felt in Davao City shortly before 7:40 a.m. local time on Monday, June 8, 2026, according to mirror.co.uk. Mirror.co.uk reported that at least 16 people have died and more than 200 are injured after an earthquake occurred in the Philippines and caused building damage.
Tsunami alerts have been issued for the Philippines, Indonesia, Japan, Palau, Yap, Taiwan, Papua New Guinea and the west coast of the United States, according to mirror.co.uk.
A 7.7-magnitude earthquake struck off the north of Japan on April 20, 2026, according to news24online.com. A separate 7.6-magnitude earthquake struck 80km off Japan’s northeast coast late Sunday, according to ?.
The Japan Meteorological Agency issued a Hokkaido–Sanriku Subsequent Earthquake Advisory warning that the probability of a giant 'megaquake' along the Japan Trench is now higher than normal, according to timesnownews.com. Three strong aftershocks were recorded after the 7.6-magnitude earthquake off Japan’s northeast coast, measured by the USGS at 5.5, 5.0, and 4.8, according to timesnownews.com.
This account was written only from facts that survived Augur's
corroboration pass — 3 corroborated across opposed news blocs,
2 contested (attributed to both sides), 11
single-source (attributed). Nothing was added; no significance was inferred.
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