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|1812-00-00||Augustine: 1812|| From Kisslinger (1983), translating Doroshin (1870): "It was active in 1812, as was positively confirmed for me by a native of the village located on the opposite shore of Kenai Bay. It wasn't possible to land canoes on the island while the wind was blowing, because the lava, which descends into the sea in a gentle slope, could at any time tear the skin of the canoe."
Waitt and Beget (2009) state "This sparse and cryptic information suggests pyroclastic flows carrying boulder-sized pumice ... More information||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=331&page=basic|
|1883-10-06||1884-00-00||Augustine: 1883 - 1884 || Waitt and Beget (2009) summarize the 1883 eruption as follows: "1883 is the first Augustine eruption documented to some extent by contemporaneous written accounts: an unpublished logbook of the Alaska Commercial Company post situated atop the spit at English Bay, published summaries by Dall (1884), Davidson (1884), and Becker (1898), an unpublished letter and an unpublished mission report both of 1884, and field notes by J.E. Spurr in 1898.
"On the 6th of October 1883, Augustine Volcano ... More information||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=332&page=basic|
|1885-00-00||Augustine: 1885|| According to Kienle and Forbes (1977) a mission report on May 27, 1885 stated: "earthquakes still quite frequent here (Kenai?) and Chernabura is still smoking." Becker (1898) says the volcano was steaming from shore to summit.
Waitt and Beget (2009) believe that this account describes rain or snowmelt infiltrating still-hot 1883 pyroclastic-flow deposits.||asterisk_yellow.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=333&page=basic|
|1893-00-00||Augustine: 1893|| From Cordeiro (1910): "The island of Chernobura is reported as smoking." Cordeiro does not specify when this "smoking" occurred, but says that most of his observations stem from his 1892 and 1894 cruises in Alaska.
Waitt and Beget (2009) believe this smoke was a lingering effect of the still-hot 1883 dome within the summit crater.||asterisk_yellow.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=334&page=basic|
|1895-00-00||Augustine: 1895|| From Russell (1910): "A slender cloud of steam ascended from the summit of the volcano, which seems to have been built up by eruptions of lapilli and dust since the explosion that rent it asunder."
Waitt and Beget (2009) believe this smoke was a lingering effect of the still-hot 1883 dome.||asterisk_yellow.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=335&page=basic|
|1902-00-00||Augustine: 1902|| From The Alaskan (1902): "While Redoubt has been most active as regards recent volcanic eruption in Alaska, two other peaks in the Cook Inlet section have been thoring [sic] off smoke and steam in greater or less volume for several months. They are Mount Iliamna and Mount Augustine."
From Johnston and Detterman (1979): "Coats quoted Sapper (1917), who told nothing more about the activity or about his source of information * * * Detterman (1973), who mapped the volcano after its 1963-64 eruption, ... More information||asterisk_yellow.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=336&page=basic|
|1908-03-10||Augustine: 1908|| From the Seward Daily Gateway (1908): "On the night of the 10th inst. as Captain Z. Moore of the steamer Dora was making his return trip from Unalaska to Seward, he saw in the distance what seemed to be fireworks on a very extensive scale. Immediately taking his bearings the captain found he was 63 miles off Chonobora island and the flames which lighted the heavens above came from the previously long extinct volcano St. Augustine. As the molten mass within the mountain was thrown up by internal ... More information||asterisk_yellow.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=341&page=basic|
|1935-03-13||1935-8-18||Augustine: 1935|| The Anchorage Daily Times published at least two articles in 1935 concerning an eruption at Augustine. The first, published April 3, states: "Augustine Island * * * is a roaring volcano, hurling a mighty volume of smoke into the heavens, pounding thousands of tons of lava down the sides into the sea and hurling dust over the areas for a radius of seventy miles.
"News to this effect was brough yesterday by Pilot Roy Dickson of the Star Air Service, returning here from that vicinity, after ... More information||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=342&page=basic|
|1944-00-00||Augustine: 1944|| Barrett (1978) notes that in 1944 a small lava dome was discovered forming in the crater.||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=369&page=basic|
|1963-10-11||1964-8-19||Augustine: 1963 - 1964 || From Kienle and Swanson (1985): "On October 11, 1963, Augustine burst into activity again, sending an ash column to about 3,000 m and a pyroclastic flow down the flank of the volcano, which set fire to brush on the lower slopes. According to Detterman (1968), the eruption continued intermittently for about 10 months, with major explosions recorded on November 17, 1963, July 5 and August 19, 1964. Presumably, during one or more of the earlier vent clearing eruptions in late 1963 ash was dispersed ... More information||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=367&page=basic|
|1971-09-02||1971-10-7||Augustine: 1971|| From Kienle and Swanson (1985): "A photograph taken during the [earthquake] swarm by Austin Post of the U.S. Geological survey on September 3 shows a strong plume fed by very active fumaroles on the 1964 lava dome. A small ash eruption and incandescence (red glow) on the flank of the volcano was seen during the late evening twilight of October 7 from a fishing boat 38 km north of the volcano. The eruption is corroborated by seismic tremor, which was recorded on both of the then existing seismic ... More information||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=371&page=basic|
|1976-01-22||1976-4-24||Augustine: 1976|| From Shackelford (1978): "In the morning of 22 January Augustine began a period of major activity from a new vent located at the contact of the 1935 and 1964 domes. The first major eruption began at 0740 AST on 23 January. On that date there were at least 8 major eruptions, one was at 1618 AST. An additional 4 major explosive outbreaks took place on 24-25 January. The eruption clouds pierced the tropopause, reaching heights + 10,000 m to 14,000 m a.s.l. Ash falls took place at Iliamna, Homer, ... More information||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=380&page=basic|
|1986-03-27||1986-9-10||Augustine: 1986|| From Swanson and Kienle (1988): "Precursory seismic activity was first detected in July 1985, 8 months prior to the 1986 eruption. A sharp increase in seismicity in March 1986 led to speculation about a possible eruption (Kienle, 1986). A several-order-of-magnitude increase in seismic event counts on the morning of March 26 heralded the eruption that began on the morning of March 27. A short-term forecast of the eruption was made on the afternoon of March 26 (Kienle et al., 1986).
"The ... More information||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=411&page=basic|
|1988-00-00||Augustine: 1988|| From Smithsonian Institution (1988): "Increased steam emission follows earthquake. At 1405 on 30 July, MarkAir pilots Kriss Paul and Bruce Gorham observed larger than normal steam emission from Augustine. When first observed, the plume was described as dirty steam with dark streaks at 1600 to 1800 m altitude, but it rose to about 2,700-3,000 m altitude within several minutes. At 1530, on their return from Kodiak to Anchorage, the pilots observed the plume spreading E and topping out slightly ... More information||information.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=440&page=basic|
|1998-07-00||Augustine: 1998|| McGimsey and others (2003) consider the 1998 activity non-eruptive : "On July 12, 1998, charter pilots from Homer who routinely fly by Augustine noted fingers of mud up to about 250 ft wide (76 m) extending down from the cloud-enshrouded summit to snowfields on the upper north-northeastern flank. Other snowfields near the summit were discolored by fine gray ash deposits. One particular flow of pinkish muddy material had reached the sea. AVO received this information on July 13 and immediately ... More information||information.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=416&page=basic|
|2003-09-09||Augustine: 2003|| From McGimsey and others (2005): "AVO received a pilot report through Kenai Flight Service of increased steaming at Augustine
volcano about mid-day on September 9, 2003. Concomitant to this report we received an inquiry about Augustine from the Homer Police Department. A check of the seismograms and spectrograms revealed nothing unusual."||information.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=587&page=basic|
|2005-12-00||2006-3-31||Augustine: 2005 - 2006 || From Power and others (2006): The 2006 eruption of Augustine consisted of four phases defined by the character of unrest or eruptive activity, which are described below. These phases are the precursory (May 2005 to 11 January 2006), the explosive (11 to 28 January), the continuous (28 January to 2 February), and the effusive (2 February to late March).
"The precursory phase began as a steady increase in microearthquakes beneath the volcano, ranging from one to two per day in May 2005 to 15 ... More information||exclamation.png||ye||50||http://www.avo.alaska.edu/volcanoes/activity.php?volcname=Augustine&eruptionid=547&page=basic|