On Wednesday morning, a powerful 7.4-magnitude earthquake struck off the east coast of Taiwan, shaking the region and triggering tsunami warnings not only for Taiwan but also for parts of southern Japan and the Philippines. The quake, occurring just before 8:00am local time, was centered 18 kilometers south of Hualien City, Taiwan, at a relatively shallow depth of 34.8 km, according to the United States Geological Survey (USGS).
The seismic event led to tsunami alerts, with Japan’s Meteorological Agency predicting waves up to three meters high for remote islands like Miyakojima. In Taiwan, the government sent out text messages urging coastal residents to exercise caution and be prepared for potential wave surges.
This tremor, the most significant in decades for Taiwan, was broadly felt across the island, from Pingtung county in the south to Taipei in the north. Taipei experienced aftershocks, including a substantial 6.5-magnitude quake, causing disruptions such as a temporary halt in metro services and prompting local officials to advise checks for gas leaks.
The event evoked memories of the 1999 disaster when a 7.6-magnitude earthquake hit Taiwan, resulting in approximately 2,400 deaths, marking the island’s deadliest natural disaster. Wu Chien-fu, director of the Seismology Center at Taipei’s Central Weather Administration, highlighted the quake’s shallow depth and proximity to land as factors in its widespread impact. He also cautioned about the possibility of significant aftershocks in the coming days and urged the public to heed evacuation warnings.
In response to the quake, neighboring regions took precautionary measures. The Philippines issued a tsunami warning, and Japan advised immediate evacuation in affected areas, with emergency broadcasts emphasizing the urgency of moving to safety. In Okinawa, Japan, maritime activities were disrupted as boats were moved offshore, and flight operations were suspended at the main airport.
The quake underscores the geological vulnerability of Taiwan, Japan, and the surrounding areas, situated near tectonic plate boundaries where seismic activity is frequent. These events serve as stark reminders of the 2011 disaster in Japan, which saw a massive 9.0-magnitude earthquake and subsequent tsunami, leading to significant loss of life and the Fukushima nuclear crisis.
