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Volcanic Hazards - Ballistic Projectile
605
Disaster Readiness and Risk Reduction
FUSIFORM BOMBS
COW PIE BOMBS
BREAD-CRUST BOMBS
SLAG BOMBS
PT#1: Volcano Hazards Graphic Organizer
RIBBON BOMBS
TEARDROP BOMBS
CORE BOMBS
EXPLOSION BOMBS
VOLCANIC BOMBS
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DESCRIPTIONS AND CHARACTERISTICS
VOLCANIC HAZARDS
A volcanic bomb is a type of ballistic projectile which is considered as a blob of material ejected from an eruption in a molten state rather than as a solid rock.
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DEFINITION
VOLCANIC BLOCKS VS. VOLCANIC BOMBS
Volcanic Hazards are phenomena arising from volcanic activity that pose potential threat to persons or property in a given area within a given period of time.
Ejected as solid rock
Ejected in a molten state
REFERENCES
Fisher, R. (1997). Hazardous Volcanic Events. Retrieved March 13, 2018 from http://volcanology.geol.ucsb.edu/hazards.htm
Fitzgerald, R.H. (2017). The Communication and Risk Management of Volcanic Ballistic Hazards Retrieved March 13, 2018 from https://link.springer.com/chapter/10.1007/11157_2016_35
GeoScience Community (n.d) Ballistics. Retrieved March 13, 2018 from http://131.247.211.166/tiki/tiki-index_raw.php?page=Ballistics
Ibargüengoitia, M., Granados, H., Montes, I. (2006). Hazard zoning for ballistic impact during volcanic explosions at Volcán de Fuego de Colima (México). Retrieved March 13, 2018 from https://pubs.geoscienceworld.org/books/book/562/chapter/3802746/hazard-zoning-for-ballistic-impact-during-volcanic
The University of West Indies Seismic Research Centre. (2011). Volcanic Hazards. Retrieved March 13, 2018 from http://uwiseismic.com/General.aspx?id=18
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Angular surfaces
Smooth & Elongated
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BALLISTIC PROJECTILES
DESCRIPTION AND NEGATIVE IMPACTS
VOLCANIC BLOCKS
EFFECTS
Positive
Negative
Ballistic Projectiles are volcanic materials which are directly ejected from the volcano's vent with force and trajectory. These objects endanger life and property due to the force of impact of falling fragments, but this occurs only close to an eruption vent.
- Force of impact endangers life & property.
- Many people can be injured:
- Releases new rocks and minerals which can be used for construction
- Lacerations
- Forced Trauma
- Burns
- Bruises
- The high kinetic and thermal energy of projectiles can puncture, dent, or melt structures.
- loss of agricultural lands
DESCRIPTION AND CHARACTERISTICS
03
A volcanic block is a solid piece of rock that has been expelled from a volcano during an eruption. The term covers rocks of various sizes, but the minimum size is 2.5 in (64 mm) in diameter.