volcanology

Peeking at the plumbing of one of the Aleutian's most-active volcanoes

Carnegie’s Diana Roman collecting samples from Alaska’s Cleveland volcano, one of the most-active volcanoes in the Aleutians.  Tana Volcano on Chuginadak Island isn in the background. Photo is courtesy of Anna Barth of Lamont Doherty Earth Observatory.

A new approach to analyzing seismic data reveals deep vertical zones of low seismic velocity in the plumbing system underlying Alaska’s Cleveland volcano, one of the most-active of the more than 70 Aleutian volcanoes. The findings are published in Scientific Reports by Helen Janiszewski, recently of Carnegie, now at the University of Hawaiʻi at Mānoa, and Carnegie’s Lara Wagner and Diana Roman. 

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Year-Long Exploration Aims to Add Gravity to the Volcano Monitoring Toolkit

Hélène Le Mével - Preparing for Villarrica-19 copy.jpg

Hélène Le Mével prepares for a year-long study in Chile to study Villarrica volcano, one of the most active volcanoes in the world. The study will include one of the most-extensive monitoring plans to date for the volcano, which is a popular tourist destination. It will also present an opportunity to pioneer the use of gravity as a monitoring tool.

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How Do You Forecast Eruptions at Volcanoes That Sit 'On The Cusp' for Decades?

How Do You Forecast Eruptions at Volcanoes That Sit 'On The Cusp' for Decades?

Some volcanoes take their time—experiencing protracted, years-long periods of unrest before eventually erupting.

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In Vanuatu, DTM Peers Into ‘Plumbing System’ of Ambrym Volcano

In Vanuatu, DTM Peers Into ‘Plumbing System’ of Ambrym Volcano

DTM volcanologists Hélène Le Mével and Diana Roman traveled to Vanuatu in May 2019 for a new project that will probe the magma under Ambrym volcano.

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Hélène Le Mével Talks Gravity, Magma, Volcanoes at Broad Branch Road

Hélène Le Mével Talks Gravity, Magma, Volcanoes at Broad Branch Road

Hélène Le Mével presented a talk titled, “The gravity of volcanoes: using gravity data to probe magma reservoirs,” on April 25 at the Carnegie Institution for Science’s Broad Branch Road (BBR) campus.

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Hélène Le Mével: To Understand How Magma Moves and Evolves in the Crust, Use Gravity

Hélène Le Mével: To Understand How Magma Moves and Evolves in the Crust, Use Gravity

In a prelude to her upcoming Neighborhood Lecture, Le Mével spoke about her work, the importance of gravity for volcanology, and the questions she is tackling through her theoretical and field work on magmatic systems.  

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