extensive disturbances in the crust beneath the Philippines
... that extensive disturbances in the crust beneath the Philippines produce many volcanoes and earthquakes?
... that <b id="mwBG4"><a href="./Subduction_tectonics_of_the_Philippines" id="mwBG8" rel="mw:WikiLink" title="Subduction tectonics of the Philippines">extensive disturbances in the crust beneath the Philippines</a></b> produce many volcanoes and earthquakes?