Great
Earthquakes In Diverse Places
Philippines: Magnitude 6.2 earthquake strikes parts of NCR,
Luzon
07/26/2011 | 01:58 AM
Updated 2:43 a.m.— An earthquake struck parts of Metro Manila and
Central Luzon on Tuesday at 1:15 a.m., magnitude 6.2, according to
the Philippine Volcanology and Seismology Institute (Phivolcs);
but the US Geological Service (USGS) recorded it at magnitude 5.9.
It was recorded at Intensity IV in Clark, Pampanga, Quezon City
and the City of Manila; Intensity III in the cities of Makati,
Pasig, Taguig, and Mandaluyong; and Intensity II in Baguio City.
It was also felt in surrounding areas like Cainta and San Mateo
towns in Rizal.
USGS said the earthquake epicenter was 102 km west-northwest of
Metro Manila; 24 km northwest of Olongapo City; 54 km
west-southwest of Angeles City in Pampanga; and 108 km
west-southwest of Cabanatuan City.
Phivolcs said the earthquake origin was tectonic and shallow (10
km below ground), with its epicenter 13 km northwest of Iba,
Zambales.
USGS said it struck at a depth of 61.3 km.
Immediately after the quake, Twitter was abuzz with reports from
affected YouScoopers. GMA News received reports that the
earthquake was felt as far north as Nueva Ecija, Pangasinan,
Tarlac and Baguio City, and up to Cavite and Laguna in the South.
People have tweeted that the earthquake lasted for as short as 10
seconds to as long as 30 seconds, causing tall buildings to shake.