Mount Pinatubo shows early signs of activity in April 1991. The volcano, located on the Philippine island of Luzon, had been quiet for centuries, and scientists knew little about its eruptive history.

This June 15 marks the 25th anniversary of the Pinatubo eruption, so it is a great candidate for an annotated volcano. I have some great images taken before and after, showing how the landscape ...

[In Photos: The Colossal Eruption of Mount Pinatubo ] Nonetheless, only a few hundred people died in the initial eruption, thanks to round-the-clock volcano monitoring, proactive evacuation plans ...

Pinatubo adventure season to entice ... Drivers stop at certain spots to allow visitors to take their pictures amid a surreal landscape of hardened volcanic ejecta. After a two-hour (somewhat ...

THE active Mount Pinatubo volcano is located in the mountain range of Zambales. It erupted in June 1991 after more than 600 years of dormancy as many volcanologists and geologists tell us. Its ...