Fault Lines Near Cagayan de Oro City and Possible Tsunami Generators

With so much talk these days about the West Valley Fault in Manila, it is also timely to talk about possible earthquake generators near Cagayan de Oro City.  We are lucky that there is no fault line under the city but there are fault lines nearby which would also shake us and swamp us with the quake-generated tsunamis.

News articles about the West Valley Fault in Manila

In an interview with the chief of the Office of Civil Defense Region 10, it was revealed that the fault at the Southern part of Bohol island which faces Misamis Oriental could generate a tsunami (Mindanao Current, 2011).

August 17, 1976- 6.7 magnitude undersea earthquake in the Celebes Sea (between Mindanao & Borneo) generated a 14-15 feet tsunami hit Sultan Naga Dimaporo, Lanao del Norte, 8,000 died, 10,000 wounded, 90,000 homeless.

The officer added that if the Tagoloan Fault under the Tagoloan River shakes violently, it will cause devastation in the province.

Fault Lines Near Cagayan de Oro City

Map Showing Recent Earthquakes in the Area

Map showing landslide susceptible areas due to earthquake or heavy rain

Google Maps with hazards overlayed

It is best to prepare for survival at home or a shelter for several days because there will be no electricity (power lines toppled, power plants damaged); there will be no water from the faucets (pipes will be broken); you cannot contact loved ones (because mobile phone towers will be toppled or damaged; landline posts toppled); roads will be blocked by debris; hospitals will be full of injured patients (glass windows from building alone will cause so many injuries); emergency personnel will also be busy tending for their loved ones; stores and mall will be closed because storeclerks will also be busy attending to their loved ones; there will be riots and ransacking of stores and malls. In short there will be chaos, and it's best to stay at home (if it still stands).


Undersea fault line can trigger tsunami in Northern Mindanao. (Mar. 26, 2011). The Mindanao Current. Retrieved 5-20-2015 from http://themindanaocurrent.blogspot.com/2011/03/undersea-fault-line-can-trigger-tsunami.html.