The volcano recently erupting in Africa–Mount Nyiragongo–is one of the most active on our planet. Eruptions in 1977, 2002 and now beginning in May 2021, have resulted in a significant number of fatalities and extensive damage in the nearby and densely populated city of Goma. If scientists were calling the shots, they would relocate Goma and designate the region beneath this active volcano as a national park.
Volcano-watchers have had lots of excitement lately with the ongoing eruptions on the Reykjavik Peninsula in Iceland and Soufriere, on the West Indies island of Saint Vincent. So far both eruptions are fairly small. Colorful graphic representations of the relative sizes of volcanic eruptions are intriguing, although variability in natural events confounds human attempts to assign neat boxes or bubbles to these phenomena.
Watching a volcano erupt is exciting–and people all around the world now have opportunities to see these dramatic performances! The new volcano on the Reykjavik Peninsula in Iceland is getting lots of attention, as is Mount Etna in Sicily. Also, the eruption that began at Kilauea on December 20, 2020 is continuing and the lava lake is deepening.
On the evening of Dec 20, 2020, an eerie orange glow appeared on the infrared monitoring cameras on the summit of Kilauea volcano in Hawai’i Volcanoes National Park. The glow grew larger and larger, marking the beginning of a new volcanic eruption. Lava began pouring out from fissures in the summit crater and a steam cloud developed as the hot lava hit lake water and the water began to boil.
A huge volcano erupted violently about 760,000 years ago on the eastern side of the Sierra Nevada, forming a large depression called the Long Valley Caldera. This “super-eruption” was estimated to be more than 2,000 times larger than the 1980 eruption of Mt St Helens...Today, the Mammoth Lakes resort area is on the western edge of the ancient caldera.
There is a lot of misinformation floating about right now, with rumors and distortions promoted on social media and even at the top levels of governments. Unfortunately, this also extends to the realm of geologic hazards, which particularly catches my attention (and great annoyance).
Forty years ago, Mount St Helens exploded in a major volcanic eruption. Although this volcano has been quiet recently, it is considered active and could stir back to life anytime. Many other volcanoes in the Pacific Northwest are also active.....
If you have admired the vast and empty Nevada landscape that unfolds during a drive across, or an airplane flight above, this western state, then you have seen some of the territory that composes the Basin and Range. The principal features of this region are rugged mountain ranges and arid deserts....
There are five volcanoes in the USA that currently exhibit evidence of increased activity – no eruptions (so far), but numerous small earthquakes and steam plumes – reported by the US Geological Survey for the week beginning April 13, 2020*. The USGS cautions: “Activity could increase with little or no warning …
The Incas and their ancestors who inhabited the Andes Mountains had many lively and colorful cultural practices – parading the mummies of long-dead rulers through the streets, oracles who spoke in tongues, psychedelic drug use, [...]