There is something about the west coast of the contiguous US. The region combines a wonderful climate with a high standard of living where the land is big, diverse and beautiful. It is a magnet for people, on par with Florida. But it has something which Florida lacks. Whilst Florida is a subtropical Caribbean paradise,…
Republished from https://roseannechambers.com, with kind permission by the author. It is a blog we happily recommend to our readers! In the recent geologic history of the Grand Canyon, volcanoes erupted in the Colorado River channel and on the rim, pouring lava over the canyon walls. Hot lava often flowed down the river channel for tens…
An eruption that ejects more than 1000 km3 of material (ash, pumice, rock…) is considered a super-eruption, a VEI-8. These represent the greatest volcanic events that have taken place during human existence. Such apocalyptic phenomena attract a lot of attention, from scientists, volcanoholics and doomsayers. The term supervolcano has become increasingly popular but also increasingly…
Of all the volcanoes of the Cascades, Mount Rainier is the tallest. It towers over the surrounding mountains and dominates the horizon even in distant Seattle. But being tall in an oceanic climate can have unwanted consequences. When it rains in Seattle, here it snows, and the snow does not melt easily. Mount Rainier has…
The Wrangell Mountains are Alaska’s most secretive volcanoes. We have looked at what they are (post I) and how they may have formed (post II). This area of Alaska has suffered the brunt of the most recent continental collision on Earth, and the Wrangell Mountains are an immense scar from this monumental accident. But there…
The Wrangell Mountains are an unexpected treasure in a land of riches. Here are shield volcanoes higher than Mauna Loa, which have grown up over the past 5 million years. It stands alone amidst the crowd. From the Wrangell Mountains, other mountains ranges can be seen in every direction, but none of those are currently…
Alaska is a wonderland. The harsh winters make the land difficult to live in, and in consequence much of the wilderness seems hardly touched by human hand. No need for rewilding here – it is wild enough to begin with! Amidst the wilderness are the most majestic mountains of North America, and some of its…
Where there are volcanoes, there are earthquakes. Both are a sign of a broken earth. Volcanoes require vertical movement and earthquakes (by and large) are horizontal: the two are not identical, but to get a volcano you need a vertical path, and to get that you need to move crust sideways. Enter the earthquakes. A…
A Kilauea/Puna update has been appended at the end of the post Distance makes the heart grow fonder. Volcanoes are best loved from far away. The excitement of live lava is best viewed on a screen and not through the window. Of course, actual distance is good, but distance in time is also often deemed…
A year ago there were frequent eruptions of Bogoslof volcano. But over the months, it dropped out of the news, as the eruption quieted down and finally ceased. This brief post is a recoup of what came before, and what the state of the island is now. Bogoslof is one (and sometimes two or three)…