Scripps Institution of Oceanography, UCSD
Volcano Expedition to the Marianas

the expedition
the science
tools & techniques
marianas history
daily journal
the team
questions & answers


the islands
April 2004
        1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30  
Link to Map

Funded by:

Daily Journal:

Guguan sky from ship

They have treacherous cliffs, unreliable weather and possibly volcanic eruptions to contend with - and time is not on their side. From April 9 to April 28, check in for daily dispatches made by the MARGINS science team from the volcanoes of the Mariana Islands.

  • Day 1 | April 9, 2004
    The Caroline Islands
    En route to the Mariana Islands, Alison, Lillie and I (Dave) took the slow route via Hawaii, the Marshall and Caroline islands. continue...
  • Day 4 | April 12, 2004
    The Reconnaissance Fly-over
    In preparation for our sampling expedition, we did a 6-hour fly-over by fixed wing aircraft along the 370-mile long volcanic chain. continue...
  • Day 6 | April 14, 2004
    The Ship Sets Sail
    Finally, after months of preparation, the Wecoma set sail Wednesday for its mission in the northern Mariana islands. continue...
  • Day 7 | April 15, 2004
    Life on the R/V WECOMA
    Life on the R/V Wecoma
    Erik, Maarten, Jenn, and I (Lillie) are well underway on our 10-day ship voyage on the waters around the Mariana Islands. continue...
  • Day 8 | April 16, 2004
    Recovering the Ocean Bottom Seismometers
    A busy day recovering the ocean bottom seismometers put down so long ago by our Japanese colleagues Shio and Hiroko. continue...
  • Day 9 | April 17, 2004
    Since its first historical eruption in May 2003, Anatahan has remained active. In the past few weeks, the seismic station on the island recorded as many as 3000 earthquakes per day. continue...
  • Day 10 | April 18, 2004
    Yesterday, we (Lillie, Maarten, Erik, and I) landed on Pagan Island, where we were greeted by a surprising number of locals. Since the island was evacuated after the 1981 eruption, a few old residents have returned in hopes of permanently resettling the island. continue...
  • Day 11 | April 19, 2004
    After boarding the R/V Wecoma yesterday evening, we cruised overnight for 50 miles from Pagan to Agrigan. We landed at Agrigan with mail and supplies for the inhabitants, who helped bring our equipment and jet fuel ashore. continue...
  • Day 12 | April 20, 2004
    Pagan and Alamagan
    Weighed down with supplies and equipment for a 4-day excursion northwards, we (Alison, Toby and Dave) took off from Saipan with Mike at 6am on Sunday morning. continue...
  • Day 13 | April 21, 2004
    After spending the night on Agrigan, we (Dave, Alison and Toby) took off by helicopter for the summit crater. We noticed that the slopes of the volcano consisted of deep gullies and ridges which, together with the dense vegetation, would make a hike virtually impossible. continue...
  • Day 14 | April 22, 2004
    After spending the morning in the 'Lost World' of Agrigan sampling fumaroles, we (Alison, Dave, and Toby) were dropped off on Asuncion, the next island up in the Mariana chain. As Mike took off to join the other group, we were left feeling somewhat marooned on this deserted island. continue...
  • Day 15 | April 23, 2004
    Today the R/V Wecoma anchored inside the caldera of Maug. Erik and Joe landed on the east island and found an ideal site where we could bring fuel ashore and land the helicopter. continue...
  • Day 16 | April 24, 2004
    Pagan and Anatahan
    Today we awoke, well rested, on Pagan Island. Erik, Maarten, Mike (our pilot) and I were excited to find 4 cups of coffee, waiting for us by our helicopter. It seems our island friends left us a wonderful morning gift. continue...
  • Day 18 | April 26, 2004
    Guguan is a very special island that was set aside as a natural preserve by the Commonwealth of the Northern Mariana Islands (CNMI) in the early '80s. continue...
  • Day 19 | April 27, 2004
    The changes in seismicity at Anatahan over the past few days have been dramatic. Two days ago (Thursday) we (Maarten, Lillie and Erik) observed extensive degassing from a single vent to the side of the dome in the East Crater. continue...
  • Day 20 | April 28, 2004
    We are all back in Saipan now, and have been making an inventory of the samples we've collected over the past 2 weeks of intensive fieldwork. We are happy that we've managed to sample geothermal fluids at the islands of Alamagan, Pagan, Agrigan and Uracas and to obtain lavas and tephra at these islands and the other 5 in the chain. continue...