You and your friend are on a trip in Cotabato City.
One of the natives in the place tells you that the place
experienced a destructive tsunami in the past. The 1976
Moro Gulf tsunami. Study the Philippine Zone Map.
Explain and provide evidence why Cotabato City
experienced such disaster.
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Answer:
This offshore event generated by Cotabato trench, a less prominent trench system in the Philippines, was the largest tsunamigenic earthquake to have occurred in Mindanao in the last two decades. It was an earthquake that resulted in massive destruction of properties and great loss of lives. The tsunami generated contributed immensely to the devastation. The cities and provinces of Cotabato took the brunt of the earthquake while the tsunami generated cast its doom on the provinces bordering Moro Gulf especially on the shores of Pagadian City. According to surveys during the event, the tsunami was responsible for 85% of deaths, 65% of injuries and 95% of those missing. After the sea spent its fury and rolled back to its natural flow, thousands of people were left dead, others homeless or missing and millions of pesos lost with the damages of properties. Properties lost not only include establishments for residential and commercial use, but also bancas that, as a whole, represents the livelihood of hundreds of families.
Date of Event 17 August 1976
Time 12:11 A.M. (Local)
Epicenter 06.3° N, 124.0° E
Magnitude 7.9
(also my mom experienced the earthquake since 1976 when she was a kid at that time)