<p>The Philippine Institute of Volcanology and Seismology said there was no immediate tsunami alert, but said it was continuing to monitor northern areas.<br /><br />The quake was located 117 kilometres northeast of Laoag city in Luzon island at a depth of 50 kilometres, the institute said.<br /><br />The United States Geological Survey recorded the quake as magnitude 6.0, and said it struck at a depth of 36 kilometres.</p>
<p>The Philippine Institute of Volcanology and Seismology said there was no immediate tsunami alert, but said it was continuing to monitor northern areas.<br /><br />The quake was located 117 kilometres northeast of Laoag city in Luzon island at a depth of 50 kilometres, the institute said.<br /><br />The United States Geological Survey recorded the quake as magnitude 6.0, and said it struck at a depth of 36 kilometres.</p>