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Title: VIDEO: Boater Catches Explosive Volcanic Eruption, Startling Sonic Boom on Camera
Source: AccuWeather.com
URL Source: http://www.accuweather.com/en/featu ... inea_volcano_eruption/33672914
Published: Sep 11, 2014
Author: Courtney Spamer
Post Date: 2014-09-11 17:33:32 by Southern Style
Keywords: None
Views: 179
Comments: 1

VIDEO: Boater Catches Explosive Volcanic Eruption, Startling Sonic Boom on Camera

Mount Tavurvur, a volcano in Papua New Guinea, erupted on Aug. 29, spewing ash and causing a shock wave and resultant sonic boom.

While in a boat near the New Guinea coast, Phil McNamara caught a rare sight, the initial explosion of a volcano. Mount Tavurvur is known as a rather active volcano, one that caused many deaths and covered a nearby town in ash in 1994.

Although a smaller eruption in comparison, the recent August explosion captured on video is a rare, close-up look.

Following the explosive eruption, a shock wave emanated from the blast.

"The volcanic blast set off a shock wave, in which the air is instantaneously compressed then decompressed, radiating outward," AccuWeather Meteorologist Jim Andrews said. "What results is instantaneous warming, then cooling, of the air. It is the cooling that causes the very fleeting visible cloud of water droplets as the wave propagates through moist tropical air."

A sonic boom, accompanying the shock wave, startled the people on the boat. The sonic boom occurred as the pressure wave traveled through the air faster than the speed of sound.

The above image, taken on Sept. 2, shows a satellite view of Papa New Guinea after the Aug. 29 explosion of Mount Tavurvur. The picture shows the crater left by the eruption. (Satellite Image/NASA)

Content contributed by AccuWeather Meteorologist Meghan Evans.(1 image)

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#1. To: Southern Style (#0)

Cool

A rainbow coalition against Jews doesn't require Whites or Pro-Whites. It can be just as brown or anti-white as you like.

Prefrontal Vortex  posted on  2014-09-11   22:46:26 ET  Reply   Trace   Private Reply  

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