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Natural Hazards Theme News

2000 years of seismicity on the San Andreas fault segment modulated by the level of the Salton Sea

05 September 2023

Press, Research

2000 years of seismicity on the San Andreas fault segment modulated by the level of the Salton Sea

Using a technique traditionally used in civil engineering, two seismologists, including Yann Klinger, a researcher at the Institut de Physique du Glob...

End of the eruption at Piton de la Fournaise on Reunion Island

04 September 2023

General public, Observatories, Press

End of the eruption at Piton de la Fournaise on Reunion Island

The eruption began on 2 July 2023, at around 8:30 am local time and stopped on 10 August 2023, at around 5 am local time (01:00 am UTC), after a phase...

Eruption in progress at Piton de la Fournaise on Reunion Island

03 July 2023

General public, Observatories, Press

Eruption in progress at Piton de la Fournaise on Reunion Island

An eruption started at Piton de la Fournaise on Réunion Island on 2 July 2023, at around 8.30am local time. Two eruption sites have been identified...

Risk science in the age of climate change

14 June 2023

Press, Research

Risk science in the age of climate change

Extreme weather events, rising sea levels, avalanches - these are just some of the hazards that place the question of risk at the heart of the debate ...

The eruptive activity of Tungurahua volcano is regulated by the fine chemical structure of its magma source

27 March 2023

Press, Research

The eruptive activity of Tungurahua volcano is regulated by the fine chemical structure of its magma source

Arc volcanism is a consequence of the fertilization of the mantle wedge by subduction fluids (metasomatism). This phenomenon governs magmatic producti...

New insights into the pre-eruptive dynamics of magma reservoirs

06 February 2023

Press, Research

New insights into the pre-eruptive dynamics of magma reservoirs

Seismic monitoring of a volcano is currently the most common method of detecting and tracking its eruptive crises, based on the increasing number and ...

Where do geological CO2 emissions come from?

14 December 2022

Press, Research

Where do geological CO2 emissions come from?

An international team, including researchers from the IPGP, has developed a technique using radon gas to track CO2 emissions observed at the surface, ...

Deep plate movements prior to a mega-earthquake detected in the Earth's gravity field

19 April 2022

Press, Research

Deep plate movements prior to a mega-earthquake detected in the Earth's gravity field

A study led by researchers from IPGP, IGN and Université Paris Cité, shows that deep mass redistributions can be observed prior to a subduction zone m...

WebObs software wins MESRI's first Open Science prize for open source software

10 February 2022

Awards and Distinctions, Observatories, Press, Research

WebObs software wins MESRI's first Open Science prize for open source software

The WebObs tool designed by the IPGP's volcanological and seismological observatories has been awarded an Open Science prize for free research softwar...

Volcano Hunga Tonga, an unusual eruption

27 January 2022

Press, Research

Volcano Hunga Tonga, an unusual eruption

On January 15th, 2022, the eruption of the Hunga Tonga volcano in the Tonga archipelago in the Pacific Ocean created a volcanic plume several tens of ...

The mechanics of earthquakes studied using high-resolution satellite images

22 October 2021

Press, Research

The mechanics of earthquakes studied using high-resolution satellite images

Using very high-resolution satellite images, taken before and after the ruptures of a sequence of earthquakes in the California desert, a study led by...

Birth of Mayotte's undersea volcano: the largest undersea eruption ever documented

01 September 2021

Observatories, Press, Research

Birth of Mayotte's undersea volcano: the largest undersea eruption ever documented

A study published on August 26th, 2021 in Nature Geoscience looks back at the discovery of a new submarine volcanic edifice off Mayotte in May 2019 du...