1994

• Subject: Popocatepetl, 21 Dec 1994 - eruption
• Subject: Popocatepetl, 21 December Eruption - clarification and more news
• Subject: Popocatepetl, reports from scientists in the field
• Subject: Popocatepetl, Latest field report and analysis of plume imagery

  1995

• Subject: Popocatepetl, USGS scientists head for Mexico to help during volcanic emergency at Popocatepetl Volcano
• Subject: Popocatepetl, Role of USGS/VDAP scientists head in Mexico - clarification
• Subject: Popocatepetl, Ash recovered shows no juvenile material

  1996

• Ash emission event, 0349H on 5 March, mild ashfall reported. (5 March 1996)
• Activity reaches steady state, observations continue (19 Mar 1996)
• Observations to the end of March 1996 (30 March 1996)
• Observations to the beginning of May 1996 (03 May 1996)
• Observations to the end of October 1996 (October 1996)

  1997

• Detailed observations through April 1997 (30 April 1997)
• Detailed observations for the first two weeks of May 1997 (15 April 1997)
• Observations to Mid April-May 1997 (13 May 1997)

mtdolan@mtu.edu