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then it commences oscillating. The average lake level keeps rising over the course of the oscillations of the second phase until it reaches overflow level. At that point, the lake's volume has increased by 45,800 cubic metres (45.8 million litres; 12.1 million US gallons). Next, the lake overflows for about 51 hours at a rate of almost 80 litres per second (0.080 m/s; 21 US gal/s), discharging on average 140,000 cubic metres (140 million litres; 37 million US gallons) of over 70 °C (158 °F) hot water down a temporary overflow stream into
Waimangu Stream in the valley below. The last stage sees the lake recede to its low level over the last 13 days of the cycle, its water temperature also falling to the low point. During that stage, around 30 million litres (30 thousand cubic metres; 7.9 million US gallons) of water drain back under Mt Haszard.
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form a unique relationship and follow an interconnected rhythmic cycle of hydrology variations repeating itself over the course of roughly 38 days. When the water level and temperature of
Inferno Crater Lake increase, the water level and outflow of Frying Pan Lake decrease. Comparable cyclic activity
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The water temperature in the lake shifts from 35 to 80 °C (95 to 176 °F) every six weeks, with acidity up to pH 2.2, and lake levels that vary up to 12 metres (39 ft), following a complicated 38-day cycle that includes an overflow stage. White silica deposits grow up to the overflow
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The system has been the subject of studies since monitoring equipment was installed in the area in 1970. Four distinct phases can be recognised in its cycle: First, the lake level rises steadily from its lowest level by a total of almost five metres (16 ft) over the course of eight days, and
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eruption, which opened several craters along a 17-kilometre (11 mi) rift stretching southwest from Mount
Tarawera to the nearby Southern Crater. Inferno Crater's trumpet-shaped lake bed is up to 30 metres (98 ft) deep when the lake is full, which is also when it reaches its highest
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level, and the lake's colour is a result of finely divided silica suspended in the water. At low water levels the lake can be a dull grey colour, changing to an intensely sky blue colour at higher lake levels, in particular after the overflow stage.
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Inferno Crater Lake is accessible via a side track with 50 steps off the main
Waimangu walking track. It is one of three lakes filling craters created in the vicinity during the 1886 event.
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A case study of resistivity and self-potential signatures of hydrothermal instabilities, Inferno Crater Lake, Waimangu; Geophysical
Research Letters, Vol 36, DOI: 10.1029/2009GL037573
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200:-like feature in the world. The actual geyser is not visible, as it plays underwater at the bottom of the lake, however,
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Since 1901 the lake occupying
Inferno Crater has exhibited water-level variations closely associated with the
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Inferno Crater was blasted out of the side of the locally prominent Mt
Haszard as part of the 1886
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Information panel "Waimangu
Monitoring Station" at the outflow from Frying Pan Lake,
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294:"What lives in New Zealand's hot and hostile volcanic springs?"
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are visible on the lake's shore and the rock wall behind it.
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Information panel "Inferno Crater" at
Inferno Crater lookout
16:Large hot spring in New Zealand's Waimangu Valley
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230:cycle. Inferno Crater Lake and its neighbouring
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35:Inferno Crater Lake at high lake level
388:Landforms of the Bay of Plenty Region
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144:cyclic overflow into Waimangu Stream
340:Waimangu Wanderer Guide, April 2014
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167:22 to 30 m (72 to 98 ft)
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292:Macdonald, Nikki (2015-05-07).
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190:Waimangu Volcanic Rift Valley
76:Waimangu Volcanic Rift Valley
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378:Hot springs of New Zealand
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383:Okataina Volcanic Centre
355:Waikato Regional Council
192:on the North Island of
373:Rotorua Lakes District
239:systems in the world.
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175:30 m (98 ft)
109:38.28194°S 176.39972°E
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235:is unknown in other
114:-38.28194; 176.39972
269:"Waimangu: Geology"
182:Inferno Crater Lake
132:(underwater geyser)
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60:Inferno Crater Lake
24:Inferno Crater Lake
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232:Frying Pan Lake
228:Waimangu Geyser
188:located in the
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127:Primary inflows
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301:. Retrieved
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276:. Retrieved
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237:hydrothermal
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80:North Island
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351:GNS Science
273:GNS Science
194:New Zealand
184:is a large
155:New Zealand
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100:176°23′59″E
87:Coordinates
367:Categories
303:2023-08-12
278:2014-12-22
250:References
186:hot spring
172:Max. depth
97:38°16′55″S
202:fumaroles
72:Location
198:geyser
298:Stuff
150:Basin
353:and
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333:^
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