IVS FEB RAS Geoportal. Geysers of Kamchatka. Nad Bolshim (Above Bolshoy). Object description

Nad Bolshim (Above Bolshoy). Facts

Гейзер Над Большим Дата: 2023/5/16
Name:	Nad Bolshim (Above Bolshoy)
Code:	5NAD
Region:	Kamchatka Peninsula
Hydrothermal system:	Geyser
Hydrothermal region:	Valley of Geysers
Thermal area:	Lagernyy
Coordinates:	54°26'15" N 160°8'12" E
Location:	above Bolshoy geyser
Type:	dwarf geyser
Status:	active
Activity periods:	2022 – continued

Description

A dwarf geyser Nad Bolshim (Above Big geyser) is located above the Bolshoy geyser and clearly visible from the observation platforms. In 2022, it was first noticed and described by Ilya Bolshakov (Moscow State University). Observations at 2022–2023: periodicity 40–60 sec, fountaining to a height of 30 cm for 5–10 sec. In 2024, the geyser became more active: period 60-90 sec, fountaining to a height of 0.5–1 m for 20–30 sec.