Glacier melting and lahar formation during January 22, 2001 eruption, Popocatépetl volcano (Mexico) Conference Paper uri icon

abstract

  • During an explosive event that occurred on January 22, 2001, at Popocatépetl volcano, small pyroclastic flows melted part of the glacier and generated a lahar. To evaluate the volume removed from the glacier, before and after the event, digital terrain models were compared. Total removed mass was ∼ 1.0 × 10 6 m 3, but a part of it was incorporated in the ∼ 4 × 10 5 m 3 lahar as meltwater (∼ 1.6 × 10 5 m 3). The ∼2.4 × 10 5 m 3 deposit included more than 50%25 of pumiceous material. An important issue for hazard assessment at ice-clad volcanoes is that not all meltwater plays a role in laharic events. © 2005 Gebrüder Borntraeger.

publication date

  • 2005-01-01