SS: i have place this earthquake at the original USGS magnitude .. here is why i have done this because when a large quake hits the USGS will post a magnitude that is high but not too high .. and then they will wait and see what happens with the quake. if it cause destruction and large tsunami then they will raise it higher .. if the quake only generates a small tsunami and little damage then they will lower the magnitude .

7.6 quake hits east of PH 08/31/2012 Residents in coastal areas of northern Samar, eastern Samar, Leyte, southern Leyte, Surigao del Sur and Surigao del Sur were advised to evacuate their homes as a precautionary measure. Phivolcs said waves as high as 19 centimeters hit Surigao at around 10 p.m. Waves caused by the quake also hit the shores of Davao and Siargao but Phivolcs said these were not life-threatening. The tsunami alert level 3 was lifted at 12:10 a.m. Saturday and residents were allowed to return to their homes. However, residents are still warned of aftershocks that may occur.

Tsunamis create mysterious atmospheric waves: Scientists October 15, 2010 “The tsunami very effectively generates atmospheric gravity waves, and because they’re fast, those waves can effectively travel to the upper atmosphere,” said Michael Hickey, a physics professor and associate dean at Embry-Riddle Aeronautical University in Florida. As the atmospheric waves travel upward, they get larger. “Because the atmosphere decreases in density as you go up, the air molecules can move much farther without bumping into each other,” Galvan explained, adding that as the wave travels through thinner and thinner material, the larger its oscillations can get.

The Mayon volcano looms over the eastern Philippine city of Legaspi in this 2006 view. A 7.6 earthquake struck off the Philippine coast on Friday, triggering landslides that killed at least one person and a small tsunami that hit the eastern part of the archipelago, authorities said. (AFP Photo)

Swollen rivers in the aftermath of Kai-Tak. The tropical storm left at least seven people dead after it swept through the Philippines early Thursday and set course for southern China. Kai-Tak battered the northern Philippines, triggering deadly landslides in mountainous regions, and flooding agricultural areas. But even with the storm gone, more monsoon rains were expected in the north of the country, and rivers were expected to continue to burst their banks. Residents here are getting ready to evacuate. (SOUNDBITE) (Filipino) RESIDENT EMILY GANIGAD SAYING: “We have fears that the flood level will rise. We’re not certain if it will, but we feel there’s a risk because looking over here and over there, it seems we’re surrounded by water.” This week’s deluge is the latest wave of misery to hit the nation – last week, floods killed 95 people and displaced hundreds of thousands, causing more than 50 million U.S. dollars worth of damage. (Reuters Photo)

This file photo shows the mining town of Padcal, pictured in 2006. The Philippines has indefinitely suspended the operations of the country’s largest gold mine there after a waste spillage near a major river, according to officials. (AFP Photo)

A view of houses in the gold mining town of Diwalwal in Compostela Valley, southern Philippines May 24, 2012. Up to 90 percent of small-scale Philippine gold production is being smuggled out of the Southeast Asian country, according to estimates from officials and traders, much of it to China. Picture taken May 24, 2012. To match Special Report PHILIPPINES-GOLD/ REUTERS/Erik De Castro (PHILIPPINES – Tags: BUSINESS COMMODITIES REAL ESTATE SOCIETY WEALTH)

A gold trader uses a stone to classify the grade or value of a gold nugget in the gold mining town of Diwalwal in Compostela Valley, southern Philippines May 24, 2012. Up to 90 percent of small-scale Philippine gold production is being smuggled out of the Southeast Asian country, according to estimates from officials and traders, much of it to China. Picture taken May 24, 2012. To match Special Report PHILIPPINES-GOLD/ REUTERS/Erik De Castro (PHILIPPINES – Tags: BUSINESS COMMODITIES SOCIETY WEALTH EMPLOYMENT)

A Filipino miner uses a blowtorch to refine gold nuggets in the gold mining town of Diwalwal in Compostela Valley, southern Philippines May 24, 2012. Up to 90 percent of small-scale Philippine gold production is being smuggled out of the Southeast Asian country, according to estimates from officials and traders, much of it to China. Picture taken May 24, 2012. To match Special Report PHILIPPINES-GOLD/ REUTERS/Erik De Castro (PHILIPPINES – Tags: BUSINESS COMMODITIES SOCIETY WEALTH EMPLOYMENT TPX IMAGES OF THE DAY)