| Local date | November 30, 1645 |
|---|---|
| Local time | 8:00 PM |
| Magnitude | 7.5 Ms |
| Depth | 13 km (8 mi) |
| Fault | Philippine Fault |
| Type | Strike-slip |
| Areas affected | Philippines, Central Luzon |
| Total damage | Unknown |
| Max. intensity | MMI X (Extreme) |
| Tsunami | No |
| Landslides | Yes |
| Casualties | 600 dead – 3,000+ injured |
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The 1645 Luzon earthquake was one of the most destructive earthquakes to hit the Philippines. It occurred on November 30 at about 08:00 PM local time on Luzon Island in the northern part of the country. The island was struck by a 7.5 Ms tremor produced by the San Manuel and Gabaldon Faults (Nueva Ecija) in the central section of the island.[1]
Aftershocks continued a few days, then on December 4 at 11:00 pm, another event (allegedly equal or stronger than November 30) hit the area, causing further death and destruction.[2]
In Manila, damage was entirely severe: it almost "crumbled" ten newly constructed cathedrals in the capital, residential villas and other buildings. An estimated number of 600 Spanish people were killed, and about 3,000 Spanish were injured.[3][4]
- ^ Tsutsumi, H., Daligdig, J.A., Goto, H., Tungol, N.M., Kondo, H., Nakata, T., Okuno, M., and Sugito, N. (2006). Timing of surface-rupturing earthquakes on the Philippine fault zone in central Luzon Island, Philippines. EOS Transactions, American Geophysical Union 87, Supplement.
- ^ Blair, Emma Helen and Robertson, James Alexander (1906). "The Philippine Islands 1493–1898, Vol. XXXV". The Arthur H. Clark Company, Cleveland, OH. p. 226
- ^ Bautista, Maria Leonila; Bartolome Bautista (April–June 2004). "The Philippine historical earthquake catalog: its development, current state and future directions". Annals of Geophysics. 47 (2–3). Retrieved October 12, 2010.
One example is after an earthquake in 1645, when only the Spaniards who perished during the earthquake were counted, while persons of <<no account>> were disregarded.
- ^ Wong, Ivan. "Evaluating Seismic Hazards in Metro Manila, Philippines" (PDF). Timothy Dawson, Mark Dober. Oakland: URS Corp. Archived from the original (PDF) on July 24, 2011. Retrieved October 12, 2010.