USGS Lists 169 Volcanoes That Need to Be Watched


Spatial News reports the USGS has issued it first list of 169 U.S. volcanoes that need to be monitored through its National Volcano Early Warning System (NVEWS) .

The list is available at on the USGS website and are in Alaska, Arizona, California, Colorado, Hawaii, Idaho, New Mexico, Nevada, Oregon, Utah, Washington and Wyoming as well as the Marianas Territory.

Based on the NVEWS analysis and volcanic activity as of April 2005, the three highest priority targets for volcano monitoring improvements are:

The volcanoes erupting now – Mount St. Helens in Washington State, Anatahan in the Mariana Islands, and Kilauea in Hawaii – and the volcanoes that are showing periods of significant unrest – Mauna Loa in Hawaii and Mount Spurr in Alaska;

The 13 very high threat volcanoes with inadequate monitoring: nine volcanoes in the Cascade Range of the Western United States: Rainier, Hood, Shasta, South Sister, Lassen, Crater Lake, Baker, Glacier Peak, and Newberry. Although Cascade volcanoes do not erupt frequently, they threaten major populations and developments. Four Alaskan volcanoes in this group include: Redoubt, Makushin, Akutan, and Augustine;

Nineteen volcanoes in Alaska and the Mariana Islands that pose high risks to aviation combined with no real-time ground-based monitoring to detect precursory unrest or the onset of an eruption. An additional 21 under-monitored volcanoes in Washington, Oregon, California, Hawaii, Alaska, the CNMI, and Wyoming are also priority NVEWS targets.

Volcano monitoring in the United States is conducted by five volcano observatories supported primarily by the USGS Volcano Hazards program. They are the Hawaiian Volcano Observatory, the USGS Cascades Volcano Observatory, the Alaska Volcano Observatory, the Long Valley Observatory, and the Yellowstone Volcano Observatory.

The Volcanoes To Be Watched:

Very High Threat
Rank State Volcano
1 HI Kilauea
2 WA St. Helens
3 WA Rainier
4 OR Hood
5 CA Shasta
6 OR South Sister
7 CA Lassen Volcanic Center
8 HI Mauna Loa
9 AK Redoubt
10 OR Crater Lake
11 WA Baker
12 WA Glacier Peak
13 AK Makushin
14 AK Akutan
15 AK Spurr
16 CA Long Valley Caldera
17 OR Newberry Volcano
18 AK Augustine

High Threat
19 WA Adams
20 AK Veniaminof
21 WY Yellowstone
22 AK Iliamna
23 CA Inyo Craters
24 AK Shishaldin
25 AK Kanaga
26 AK Wrangell
27 CA Mono Craters
28 AK Pavlof
29 AK Ugashik-Peulik
30 HI Hualalai
31 CA Medicine Lake
32 CNMI Pagan
33 AK Trident
34 AK Katmai
35 AK Great Sitkin
36 CA Clear Lake
37 AK Aniakchak
38 AK Churchill
39 AK Gareloi
40 CNMI Anatahan
41 CNMI Agrigan
42 AK Martin
43 AK Mageik
44 AK Novarupta
45 AK Griggs
46 AK Hayes
47 AK Dutton
48 AK Westdahl
49 CNMI Alamagan
50 AK Atka
51 AK Semisopochnoi
52 AK Okmok
53 AK Kaguyak
54 AK Pavlof Sister
55 AK Seguam

Moderate Threat
56 AK Chiginagak
57 NV Steamboat Springs
58 AK Snowy Mountain
59 AK Dana
60 AK Kiska
61 AK Roundtop
62 AK Tanaga
63 AK Vsevidof
64 CA Mono Lake Volcanic Field
65 NM Valles Caldera
66 AK Kupreanof
67 OR North Sister Field
68 AK Edgecumbe
69 CA Coso Volcanic Field
70 AK Douglas
71 AK Yantarni
72 AK Frosty
73 AK Ukinrek Maars
74 CNMI Guguan
75 CNMI Sarigan
76 AK Little Sitkin
77 AK Fisher
78 AK Recheschnoi
79 CA Ubehebe Craters
80 AK Black Peak
81 CO Dotsero
82 AK Kukak
83 HI Haleakala
84 AK Cleveland
85 AK Emmons Lake
86 OR Bachelor
87 AK Moffett
88 AK Adagdak
89 AK Denison
90 AK Steller
91 CA Red Cones
92 AK Amukta
93 AK Bogoslof
94 AK Kialagvik
95 AK Amak
96 AK Sanford
97 HI Mauna Kea
98 CNMI Farallon de Pajaros
99 CNMI Asuncion
100 AZ Sunset Crater
101 AK Kasatochi
102 UT Black Rock Desert
103 AK Yunaska

Low Threat
104 AK Carlisle
105 AK Fourpeaked
106 AK Isanotski
107 AK Kagamil
108 AK Takawangha
109 AK Bobrof
110 AK St. Michael
111 AK Segula
112 OR Blue Lake Crater
113 AK Ingakslugwat Hills
114 AK Nunivak Island
115 CNMI Maug Islands
116 AK Koniuji
117 AK Sergief
118 ID Hell’s Half Acre
119 AK Stepovak
120 AK Buldir
121 AK Chagulak
122 AK Herbert
123 AK Uliaga
124 ID Craters of the Moon
125 AK Unnamed
126 WA Indian Heaven
127 AK Davidof
128 WA West Crater
129 UT Markagunt Plateau
130 AZ Shoshone Lava Field
131 OR Belknap
132 AK Table Top-Wide Bay
133 ID Wapi Lava Field
134 AK Duncan Canal
135 AK Buzzard Creek
136 CNMI Ruby
137 CNMI Esmeralda Bank

Very Low Threat
138 NM Carrizozo
139 NM Zuni-Bandera
140 UT Santa Clara
141 OR Jordan Craters
142 AK Gordon
143 CA Eagle Lake Field
144 CA Big Cave
145 CA Twin Buttes
146 OR Davis Lake
147 CA Tumble Buttes
148 CA Lavic Lake
149 CA Brushy Butte
150 OR Washington
151 CA Amboy
152 OR Sand Mountain Field
153 OR Jefferson
154 UT Bald Knoll
155 OR Cinnamon Butte
156 AZ Uinkaret Field
157 AK St. Paul Island
158 AK Tlevak Strait-Suemez Is.
159 OR Four Craters Lava Field
160 AK Imuruk Lake
161 OR Lava Mountain
162 OR Devils Garden
163 OR Diamond Craters
164 OR Jackies Butte
165 CA Golden Trout Creek
166 AK Kookooligit Mountains
167 AK Behm Canal-Rudyerd Bay
168 CNMI Ahyi
169 CNMI Supply Reef

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