Dutton

Photo of this volcano
  • United States
  • Alaska
  • Stratovolcano
  • Unknown - Evidence Credible
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 55.183°N
  • 162.276°W

  • 1465 m
    4805 ft

  • 312011
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Bulletin Report: August 1988 (SEAN 13:08) Citation IconCite this Report


Seismicity drops but remains in background

"Seismicity near Mt. Dutton has continued at a low level since the last day of high activity on 8 August. Earthquakes have been high-frequency in character (i.e. not low-frequency volcanic events) and the best-located hypocenters lay at shallow depths (1-10 km) beneath the volcano's SE flank. Figure 1 shows three pulses of high activity followed by a few events/day through 4 September. This level of activity is still much higher than the background rate of a few events/year that existed before the swarm started in July."

Figure (see Caption) Figure 1. Number of events/day recorded at station DRRZ (28 km from the summit of Mt. Dutton). The data are not corrected for a reduction in gain on the helicorder on 1 August.

Information Contacts: John Taber, Lamont-Doherty Geological Observatory, NY.

The Global Volcanism Program has no Weekly Reports available for Dutton.

Bulletin Reports - Index


Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Click on the index link or scroll down to read the reports.

07/1988 (SEAN 13:07) Earthquake swarm

08/1988 (SEAN 13:08) Seismicity drops but remains in background




Information is preliminary and subject to change. All times are local (unless otherwise noted)


July 1988 (SEAN 13:07) Citation IconCite this Report


Earthquake swarm

On 10 July, a swarm of small shallow earthquakes began SW of Mt. Dutton. Epicenters gradually migrated NW underneath the mountain's SW flank. The events were similar to a smaller swarm that occurred in 1984. On 15 July and 8 August, days of peak activity, earthquakes (M<=3.8) were felt in the King Cove and Cold Bay areas, ~13 km S and 28 km W of Mt. Dutton, respectively. No harmonic tremor or B-type events have been recorded, and geologists have been unable to determine whether the seismicity is related to magma migration or tectonic movement. During reconnaissance field investigations on 25 and 26 July, T. Miller observed no evidence of gas emission, melting snow, or other changes to the edifice, and no historical volcanic activity has been documented. Holocene activity is indicated by unglaciated pyroclastic deposits on the E flank, debris avalanches on the S flank, and a dome on the NE flank. No surface faults have been mapped with trends similar to current seismicity. Lamont-Doherty's pre-existing regional seismic network and two supplemental seismic stations recently installed on the volcano's slopes by the AVO were recording daily earthquake activity as of mid-August.

Information Contacts: M.E. Yount and T. Miller, Branch of Alaskan Geology, USGS Anchorage; Klaus H. Jacob, Lamont-Doherty Geological Observatory, NY; J. Reeder, ADGGS; John Power, Univ of Alaska Geophysical Institute, Fairbanks.


August 1988 (SEAN 13:08) Citation IconCite this Report


Seismicity drops but remains in background

"Seismicity near Mt. Dutton has continued at a low level since the last day of high activity on 8 August. Earthquakes have been high-frequency in character (i.e. not low-frequency volcanic events) and the best-located hypocenters lay at shallow depths (1-10 km) beneath the volcano's SE flank. Figure 1 shows three pulses of high activity followed by a few events/day through 4 September. This level of activity is still much higher than the background rate of a few events/year that existed before the swarm started in July."

Figure (see Caption) Figure 1. Number of events/day recorded at station DRRZ (28 km from the summit of Mt. Dutton). The data are not corrected for a reduction in gain on the helicorder on 1 August.

Information Contacts: John Taber, Lamont-Doherty Geological Observatory, NY.

The Global Volcanism Program is not aware of any Holocene eruptions from Dutton. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Dutton page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

The Global Volcanism Program has no synonyms or subfeatures listed for Dutton.

Photo Gallery


Snow-capped Mount Dutton volcano, seen here from the NE with the wall of Emmons Lake caldera in the foreground, is a small stratovolcano near the tip of the Alaska Peninsula. Successive dacitic lava domes overlying andesitic lava flows form the summit. Collapse of the summit during the Holocene produced debris avalanches that traveled to the west and also reached Belkofski Bay to the south. No historical eruptions are known, although earthquake swarms were recorded in 1984-85 and 1988.

Photo by Betsy Yount, 1986 (Alaska Volcano Observatory, U.S. Geological Survey).
See title for photo information.
Mt. Dutton viewed from the airport runway at Cold Bay at the tip of the Alaska Peninsula.

Photo by Christina Neal, 1997 (Alaska Volcano Observatory, U.S. Geological Survey).
See title for photo information.
Clouds flank Mount Dutton volcano, seen here from the NE. Dutton is a small 1506-m-high stratovolcano located near the tip of the Alaska Peninsula. Successive dacitic lava domes overlying andesitic lava flows form the summit. Collapse of the summit during the Holocene produced debris avalanches that traveled to the west and also reached Belkofski Bay to the south. No historical eruptions are known, although earthquake swarms were recorded in 1984-85 and 1988.

Photo by Betsy Yount (Alaska Volcano Observatory, U.S. Geological Survey).
See title for photo information.

Smithsonian Sample Collections Database


There are no samples for Dutton in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites