Volcanic plume measurements using a UAV for the 2014 Mt. Ontake eruption

Earth, Planets and Space

Table 2 Reported H₂S emission rates from volcanoes

Volcano	Period	H₂S flux (t/d)	Major sulfur^c	Method^d	References
Mt. Baker	1975, 2000	5.5–112	H₂S	C. D.	Radke et al. (1976), McGee et al. (2001)
Mt. St. Helens (phreatic period)	March–May 1980	2.6–43	H₂S	C. D.	Hobbs et al. (1982)
Mt. St. Helens (IE & P^a)	May–June 1980	260–8600	H₂S	C. D.	Hobbs et al. (1982)
Mt. St. Helens (PE^b)	June 1980–June 1981	1.7–864	SO₂	C. D.	Hobbs et al. (1982)
Mt. St. Helens (PE^b)	September 1980	65	SO₂	Ratio	Bandy et al. (1982)
White Island	2004, 2005, 2006	2–19	SO₂	C. D.	Werner et al. (2008)
Redoubt	2009, 2010	1–1230	SO₂	C. D.	Werner et al. (2013)
Redoubt	1997, 2000, 2001 2005	0–1	SO₂	C. D.	Doukas and McGee (2007)
Spurr	2004	0.2–3	H₂S	C. D.	Doukas and McGee (2007)
Spurr	2005, 2006	0–6.7	SO₂	C. D.	Doukas and McGee (2007)
Iliamna	2001–2005	0–4	SO₂	C. D.	Doukas and McGee (2007)
Augustine	2002–2006	0–8.2	SO₂	C. D.	Doukas and McGee (2007)
Fourpeaked	2006	27–140	SO₂	C. D.	Doukas and McGee (2007)
Mageik	2004	69	H₂S	C. D.	Doukas and McGee (2007)
Martin	2002, 2004	0–43	SO₂	C. D.	Doukas and McGee (2007)
Etna	1978, 1979	1–10	SO₂	C. D.	Jaeschke et al. (1982)
Etna	2003	50	SO₂	Ratio	Aiuppa et al. (2005a, b)
Stromboli	2003	8	SO₂	Ratio	Aiuppa et al. (2005a, b)
Vulcano	2003	6	SO₂	Ratio	Aiuppa et al. (2005a, b)
Bromo	2014	17–25	SO₂	Ratio	Aiuppa et al. (2015)
La Soufriere	2006, 2012	1–3.8	H₂S	C. D.	Allard et al. (2014)
Mt. Ontake	Oct. & Nov. 2014	710–800	H₂S	Ratio	This study
Mt. Ontake	Jun. 2015	<110	H₂S	Ratio	This study

^aIE&P: Intra-eruptive and paroxysmal periods
^bPE: Post-eruptive period
^cMajor Sulfur: Major sulfur species in volcanic plume
^dMethod: Methods for H₂S flux measurement. C. D.: concentration distribution by profiling; Ratio: combination SO₂ flux and SO₂/H₂S ratio