The initial magnitude scale was established by Greek astronomer Hipparchus around 135 B.C.E., categorizing approximately 850 stars into six ranges from 1st (brightest) to 6th (faintest) magnitude.

BACOLOD CITY – “Big One” earthquakes of magnitude 7.9 up to magnitude 8.2 are possible even outside of Metro Manila, the Philippine Institute of Volcanology and Seismology (PHIVOLCS) said on Monday.

Geologists say a magnitude 10 earthquake is impossible, while the ‘Big One’ expected to come from the West Valley Fault is projected to have a magnitude of 7.2 Claim: The “Big One,” the strong ...

In a span of less 10 hours, Davao Oriental's Manay town was struck by doublet earthquakes at magnitudes 7.4 and 6.8. These came just over a week after Bogo City in northern Cebu, hundreds of ...

MANILA: A strong earthquake of magnitude 7.4 struck offshore in the southern Philippines on Friday (Oct 10), the country's seismology agency said, with tsunami warnings issued in several countries and ...

MANILA, Philippines (Updated 11:11 a.m.) — A powerful magnitude 7.4 earthquake struck offshore of Davao Oriental on Friday, October 10, at 9:43 a.m., prompting the issuance of a tsunami warning for ...

A 7.4-magnitude earthquake Friday morning off the southern Philippines damaged buildings, knocked out power, killed at least two people and prompted evacuations of coastal areas nearby due to a ...

Manila, Philippines — A 7.4-magnitude earthquake Friday morning off the southern Philippines killed at least two people, damaged a hospital and schools, knocked out power and prompted evacuations of ...

MANILA, Philippines — A magnitude 4.4 earthquake struck La Union on Thursday morning, with tremors felt in parts of northern Luzon, Phivolcs said. Phivolcs initially measured the tremor at magnitude 4 ...

Extensive damage, hundreds of aftershocks reported in Central Visayas region The magnitude 6.7 earthquake that struck on Tuesday night damaged the Archdiocesan Shrine of Sta. Rosa de Lima in Cebu, in ...

SARATOGA SPRINGS — The road less traveled to the Travers this year went through Altoona, Iowa. Trainer Steve Asmussen and owner Ron Winchell appeared to have one of the better 3-year-olds early this ...

A magnitude-5.6 earthquake has struck inland from Queensland's Sunshine Coast. Geoscience Australia said the epicentre was about 80 kilometres west of Noosa and 250 kilometres north of Brisbane.