Qualla: 1951 East Rift Valley Earthquakes

1951 East Rift Valley Earthquakes: Introduction

Thu, 09 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. The first one hit at 5:34 in the morning on October 22, 1951, while the inhabitants of Hualien were still sleeping. A magnitude 7.3 earthquake, centered just a few kilometers southwest of Hualien City, shook the entire island of Taiwan and was felt as far away as the Penghu archipelago and Kinmen, the fortified islands off the Chinese mainland coast. It was not the last. Over the next six weeks, three more major earthquakes struck the East Rift Valley, including a magnitude 7.8 event on November 24 -- the largest of the series. By the time the ground finally settled in early December, 85 people were dead, 200 seriously injured, 1,000 more lightly hurt, and roughly 3,000 dwellings had been completely destroyed across one of the most sparsely populated and geographically isolated regions of Taiwan.

Image: Mikenorton | CC BY-SA 3.0

1951 East Rift Valley Earthquakes: Where the Plates Collide

Thu, 09 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. The East Rift Valley is one of the most dramatic geological features in East Asia. It marks the boundary where the Philippine Sea Plate and the Eurasian Plate grind against each other, creating a corridor of rugged terrain that runs the length of eastern Taiwan between the Centra...

Image: Mikenorton | CC BY-SA 3.0

1951 East Rift Valley Earthquakes: Six Weeks of Terror

Thu, 09 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. The earthquake series, sometimes called the 1951 Hualien-Taitung earthquakes, unfolded in a pattern that gave residents no chance to recover between blows. The deadliest quake struck first, on October 22, centered southwest of Hualien City at a magnitude of 7.3. A month later, on...

Image: Mikenorton | CC BY-SA 3.0

1951 East Rift Valley Earthquakes: Aftermath in a Forgotten Valley

Thu, 09 Apr 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. Taiwan's Central Weather Bureau would later tally the toll: 85 dead, 1,200 injured, and approximately 3,000 homes reduced to rubble. These numbers, while devastating for the small communities affected, received relatively little national or international attention. Taiwan in 1951...

Image: Mikenorton | CC BY-SA 3.0