M5.9 Quake Strikes Northern Luzon, Philippines

Earthquake measuring 5.9Mw strikes northern Luzon 425 km north of Manila

The quake was centered near 18.454°N, 120.856°E and occurred on Monday, March 22, 2010 at 19:58:14 UTC , and a depth of 30km.

NO tsunami warning was issued and as of posting there were no reports of casualties or damage.

The epicenter was located about 130km north of the dacitic Ambalatungan Group of volcanoes and 130km west (282 degrees) of  the historic Cagua volcano.

Earthquake Location Map. © Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum – GFZ

Summary of Earthquake Details (USGS)

• Magnitude: 5.9
• Date-Time:
  • Monday, March 22, 2010 at 19:58:14 UTC
  • Tuesday, March 23, 2010 at 03:58:14 AM at epicenter
• Location: 18.454°N, 120.856°E
• Depth: 42.6 km (26.5 miles)
• Region: NORTHERN LUZON, PHILIPPINES
• Distances
  • 35 km (25 miles) NE of Laoag, Luzon, Philippines
  • 185 km (115 miles) NW of Ilagan, Luzon, Philippines
  • 425 km (265 miles) N of MANILA, Philippines
  • 735 km (460 miles) S of T’AI-PEI, Taiwan
• Location Uncertainty: horizontal +/- 7.2 km (4.5 miles); depth +/- 9.6 km (6.0 miles)
• USGS: NEIC (WDCS-D)
• Event ID: us2010udbw

The Philippine Institute of Volcanology and Seismology estimated the magnitude at 5.7Mw.

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