1. Mount Tambora
By: Cindy Lee

2. Located on island of Sumbawa in Indonesia
Subduction zone of Indian Ocean Plate subducting into Eurasian Plate

3. Stratovolcano
1815 had 2 eruptions in April
April 5
Small tremors
Pyroclastic flow
April 10
Top of Mount Tambora blew off
Eruption measured a VEI-7
Produced giant plinian column
Reached km high into the stratosphere
Tephra ejected ~100 km3

4. Pre-eruption height ~4,300 m Post-eruption height ~2,851 m
Caldera width ~6,000 m depth ~1,250 m

5. Effects ~10,000 people died from initial eruption
Year Without A Summer 1816
Decreased global temperatures by 5.4 oF
Summers were extended winters
Heavy snow and frost prevented crops from growing
~80,000 people died from starvation and disease

6. Since 1815 eruption Still active Smaller eruptions 1880, 1867
Seismic activity
2011, 2012, 2013

7. References https://www.britannica.com/place/Mount-Tambora
the-past /
_Tambora