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Taal Volcano Main Crater Lake (IPA: [taʔal]; or simply Main Crater Lake[3]), historically known as Yellow Lake,[4] is a lake inside the main crater of Taal Volcano. The origin of the lake is uncertain but is thought to have formed by rainwater. The lake briefly disappeared after the 2020 eruption of Taal Volcano.[5][6]

Main Crater Lake
Yellow Lake
The lake prior to the 2020 eruption of Taal Volcano
Main Crater Lake
Location within the Philippines
LocationBatangas
Coordinates14°00′35″N 120°59′54″E
TypeCrater lake
Primary inflowsTaal Lake
Primary outflowsTaal Lake
Catchment areaTaal Lake
Basin countriesPhilippines
Max. length1 km (0.62 mi)
Max. width1.9 km (1.2 mi)[1]
Surface area234.2 km2 (90.4 sq mi)
Average depth100 m (330 ft)[2][3]
Max. depth172 m (564 ft)[2]
Water volume24.256×10^9 m3 (856.6×10^9 cu ft)
Shore length1115 km (71 mi)
Surface elevation4 m (13 ft)
Islands
Settlements
1 Shore length is not a well-defined measure.

There is an island inside of Main Crater Lake, called Vulcan Point.


History



Disappearance


After the January 12, 2020, eruption of Taal Volcano, satellite images showed that the water in Main Crater Lake had disappeared.[7][8] Although the main cause of its disappearance is unknown, it is suggested that the water must have dried up due to the fissures that formed after the eruption.[7] The lava beneath the volcano may also have contributed to the evaporation of the lake.[5]

After Taal Volcano calmed down, a series of typhoons allowed rain to re-accumulate and reform Main Crater Lake.


Geography



Vulcan Point


Vulcan Point
Vulcan Point
Location within the Philippines
Geography
LocationTaal Volcano
Coordinates14°00′35″N 120°59′54″E
Adjacent toMain Crater Lake
Administration
Philippines
RegionCalabarzon
ProvinceBatangas
MunicipalitiesSan Nicolas
Demographics
Population0 (uninhabited)

Vulcan Point Island, or simply Vulcan Point, is a small rocky island inside of Main Crater Lake which was once covered with vegetation before the 2020 eruption, of which it survived. It is one of only a few islands in a lake on an island in a lake on an island in the world,[9] of which the largest is an unnamed island located within Victoria Island in Canada.[10][11][12] It projects from the surface underneath Main Crater Lake, which was the remnant of the old crater floor that was filled in by the lake.


References


  1. Gavilan, Jodesz (January 13, 2020). "FAST FACTS: What you should know about Taal Volcano". Rappler. Retrieved February 1, 2020.
  2. "Lake Taal". International Lake Environment Committee. Archived from the original on March 6, 2012. Retrieved March 17, 2012.
  3. "Taal Volcano". Philippine Institute of Volcanology and Seismology. Retrieved February 1, 2020.
  4. U.S. Army Corps of Engineer (1954). "Manila (Topographic map)"". University of Texas in Austin Library. Retrieved August 3, 2014.
  5. "Philippines Taal Volcano has lost its Main Crater Lake". The Washington Post. January 17, 2020. Retrieved February 1, 2020.
  6. "Image shows ash, lava visible at Taal Volcano's main crater". GMA News. January 23, 2020. Retrieved February 1, 2020.
  7. "Dramatic Changes at the Heart of Taal Volcano Spied by Satellites". Retrieved February 2, 2020.
  8. "Taal volcano's inner lake all but gone in eruption". BBC News. January 16, 2020. Retrieved February 2, 2020.
  9. "Some interesting islands and lakes". Elbruz. Archived from the original on September 19, 2013. Retrieved February 1, 2014.
  10. Records, Guinness World (2018-08-28). 2019 Guinness World Records. pp. 40–41. ISBN 978-1-912286-43-0.
  11. "This ridiculous little island will not BLOW your mind, but it will BEND it…". Archived from the original on February 16, 2016. Retrieved February 12, 2016.
  12. "World's Largest Island-in-a-lake-on-an-island-in-a-lake-on-an-island Seen on Google Earth". Archived from the original on February 16, 2016. Retrieved February 12, 2016.



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