The fullest investigation of the massive Hunga Tonga-Hunga Ha’apai eruption to date

The fullest investigation of the massive Hunga Tonga-Hunga Ha’apai eruption to date

In January 2022, Hunga-Tonga Hunga-Ha’apai (HT-HH) emitted the biggest atmospheric explosion recorded on Earth in more than 100 years. Several months after the eruption, a New Zealand-led team has completed the fullest investigation to date into the eruption of this underwater Tongan volcano.

Study shows how Earth-Sun distance dramatically influences annual weather cycles in the equatorial Pacific in a 22 000-year cycle

Study shows how Earth-Sun distance dramatically influences annual weather cycles in the equatorial Pacific in a 22 000-year cycle

A new research led by the University of California, Berkeley, demonstrates that one driver of annual weather cycles in the eastern equatorial Pacific Ocean—in particular, a cold tongue of surface waters stretching westward along the equator from the coast of South America—has gone unrecognized: the changing distance between Earth and the Sun.

Reactivation of dormant Edgecumbe volcano, Alaska

Reactivation of dormant Edgecumbe volcano, Alaska

Researchers reporting in AGU’s Geophysical Research Letters show that the seismic swarm detected near Mt. Edgecumbe volcano in Southeast Alaska, U.S. in April 2022 was caused by magmatic activity taking place under this transform fault volcano previously considered dormant.

Lava field in Lanzarote twice as thick as previously thought, Canary Islands

Lava field in Lanzarote twice as thick as previously thought, Canary Islands

An international group of researchers reporting in AGU’s Geochemistry, Geophysics, Geosystems used radar satellites to measure how fast parts of the lava fields in Lanzarote, Canary Islands are sinking nearly three centuries after a massive eruption that lasted from 1730 – 1736.

Predicting earthquakes using ionospheric total electron content anomalies- study

Predicting earthquakes using ionospheric total electron content anomalies- study

A new study published recently in Remote Sensing proposes the implementation of machine learning support vector machine (SVM) technique, applied with GPS ionospheric total electron content (TEC) pre-processed time series estimations, to evaluate potential precursors caused by earthquakes.

How solar storms affect railway signals

How solar storms affect railway signals

A project investigating the effect of solar storms on railway signals, presented this week at the National Astronomy Meeting (NAM 2022) by Cameron Patterson, a PhD student at Lancaster University, shows how fluctuations in space weather are disrupting train signals and causing significant delays.