BUTUAN CITY - A 4.1-magnitude earthquake hit Surigao del Sur province in Caraga region early Monday morning, August 3, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
In its bulletin, Phivolcs said the tremor was recorded at 12:44 a.m.
The epicenter was plotted 86 kilometers (kms) southeast of Hinatuan town, Surigao del Sur province.
The tremor had a shallow depth of only 1 km, Phivolcs said.
The earthquake was tectonic in origin and no tsunami alert was raised by the state agency.
The Surigao del Sur provincial disaster risk reduction and management council (PDRRMC) there reported no damage or injury.
Meanwhile, after less than an hour, a 3.9-magnitude tectonic earthquake was also registered at 1:29 a.m. and its epicenter traced 125 kms southeast of that same town and province, with a shallow depth of only 1 km, Phivolcs also said, in its latest advisory.
No aftershock was raised by the state agency and the Surigao del Sur PDRRMC there also no reported damage or injury.