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Space radar finds Manila Bay fault

A fault has been detected by satellite radar amid plans to expand reclamation of Manila Bay, a geologist said. In a forum held at Club Filipino in San Juan City Dr. Kelvin Rodolfo, professor emeritus of the Department of Earth and Environmental Sciences, University of Illinois in Chicago said “reclamation was not a good idea due to the land subsidence that we are experiencing now.” “Metro Manila is subsiding rapidly, several inches every year, due to over-extraction of groundwater by the rapidly growing population.” Rodolfo said extending the shoreline will raise the water level at least 10 times faster than the rate due to global warming. Liquefaction, according to him, is the most deadly hazard during earthquakes. Rodolfo is a corresponding member of the Philippine National Academy of Science and Technology along with the Department of Science and Technology. He said the fault line was near the cities of Caloocan, Malabon and Navotas. “We just came across it while doing another study,” he said. But Director Renato Solidum, of the Philippine Volcanology and Seismology,  said parallel studies are being made. “Phivolcs has been doing interferometry also there are many observations needed to explain why there is subsidence and relate it to fault,” he said. With Rodolfo in the panel were Cultural Center of the Philippines chairman of the board Emily Abrera, architect Paulo Alcazaren and environmental lawyer Galahad Pe Benito.
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