Lava flows are outpourings of molten rock on the Earth's surface. They're very common in volcanic eruptions, and they come in different forms, according to AccuWeather. Pahoehoe lava is smooth and ...

CORRECTION: This infographic was updated on July 27, 2018, to correct the relative viscosities of pahoehoe and aa lava flows. Pahoehoe lava flows do not have higher viscosity than aa lava flows.

The lava, he said, “flows like water ... There are two main kinds of lava: pahoehoe and aa. The latter, said Janet Babb, a geologist with the USGS Hawaiian Volcano Observatory, is “jagged ...

In some ways, monitoring pahoehoe flows can be much more difficult than monitoring aa flows, which are often focused in a single, well-defined lava channel. Until recently, geologists at the U.S ...

the flow has advanced in the way that slow-moving pahoehoe flows are notoriously famous for — fitfully — as a series of budding lava “toes” and lobes (small flows) that break out and ...

Lava flows are outpourings of molten rock on the Earth's surface. They're very common in volcanic eruptions, and they come in different forms, according to AccuWeather. Pahoehoe lava is smooth and ...

Lava flows are outpourings of molten rock on the Earth's surface. They're very common in volcanic eruptions, and they come in different forms, according to AccuWeather. Pahoehoe lava is smooth and ...

Lava flows are outpourings of molten rock on the Earth's surface. They're very common in volcanic eruptions, and they come in different forms, according to AccuWeather. Pahoehoe lava is smooth and ...