日本提示后续大震风险！

Group 1 - Japan Meteorological Agency and Cabinet Office issued the first "Hokkaido-Sanriku Coastal Aftershock Earthquake Alert" indicating a higher probability of significant earthquakes in the region for about a week following the 7.5 magnitude earthquake near Aomori Prefecture [1] - The earthquake occurred on August 8 at 23:15 local time, with reports of multiple injuries in Aomori and Hokkaido [2] - A government expert meeting is expected to release updated loss estimates for a potential 7.3 magnitude earthquake in Tokyo, predicting 18,000 fatalities and an economic loss of 83 trillion yen (approximately 532 billion USD) [2] Group 2 - The Chinese Embassy in Japan issued a consular reminder for Chinese citizens in Japan to be vigilant about earthquake risks and to follow local government safety instructions [2] - The estimated impact of a major earthquake in Tokyo includes approximately 400,000 buildings collapsing or burning, with 4.8 million people needing to seek refuge in public facilities, and around 16 million households facing power outages [2]