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After the eruption image from July 1991 (really just a brown and gray mess under a few puffy clouds), a bright purple-pink lahar appears downstream on the Pasig-Potrero River. The sediments are redistributed over time, until the October 1994 image shows a larger change to the river.
13 lut 2019 · Pyroclastic flows known as lahars easily overran the slopes of Pinatubo, engulfing gullies as deep as 200 meters. The Aeta tribes that lived on the slopes lost their entire world. The mountain and centuries-old forests they knew were wiped out and replaced by a barren and unfriendly place.
Several smaller lahars washed through the Clark Air Base, flowing across the base in enormously powerful sheets, slamming into buildings and scattering cars. Nearly every bridge within 30 km (19 mi) of Mount Pinatubo was destroyed. Several lowland towns were flooded or partially buried in mud.
A view of some of the incredible lahar mudflow that came down off Mt. Pinatubo in the rains of 1994-1995. This once was a major road across the Pampanga River. The normal elevation here is at the river level.
19 cze 2022 · Using satellite images, the “shrinking of the lahar flow area started in 1998, and the run-off to the downstream area was decreased.
6 lis 2014 · Lahar warning systems have three basic components: (1) sensors or observers to detect an approaching lahar; (2) data acquisition, transmission, and evaluation systems to transfer and evaluate data to determine if there really is an approaching lahar; and (3) alert-notification systems to inform people that a lahar is coming.
1 lut 2020 · This review describes the mechanisms of lahars and debris flows, and their impacts on buildings, infrastructure and other valuables. Lahars are a type of debris flow restricted to volcanic debris.
