: solid material ejected into the air during a volcanic eruption
especially
: ash entry 2 sense 2b
Examples of tephra in a Sentence
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Hawaii's Kilauea volcano, one of the world's most active, erupts for 7th time since December
Due to its proximity to the most populated city in Alaska, volcanologists are constantly monitoring for potential threats from the stratovolcano, a steep-sided volcano comprised of hardened lava and tephra.
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Julia Jacobo, ABC News, 14 Feb. 2025
Although an abundance of liquid water in the relatively warm Vatnajökull ice prevented our system from probing more than tens of meters below the surface, these tephra layers were apparent in our radar soundings.
—IEEE Spectrum, 5 Aug. 2023
The eruption spewed tons of tephra—rock fragments ejected from the volcano—into Yokohama and Tokyo, some 60 miles east of Fuji.
—Eli Wizevich, Smithsonian Magazine, 16 Dec. 2024
Gas emissions and rock fragments ejected from the volcano into the air, known as tephra, were the primary hazards from the eruption, the observatory said.
—Alex Sundby, CBS News, 4 June 2024
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Julia Jacobo, ABC News, 14 Feb. 2025
Although an abundance of liquid water in the relatively warm Vatnajökull ice prevented our system from probing more than tens of meters below the surface, these tephra layers were apparent in our radar soundings.
—IEEE Spectrum, 5 Aug. 2023
The eruption spewed tons of tephra—rock fragments ejected from the volcano—into Yokohama and Tokyo, some 60 miles east of Fuji.
—Eli Wizevich, Smithsonian Magazine, 16 Dec. 2024
Gas emissions and rock fragments ejected from the volcano into the air, known as tephra, were the primary hazards from the eruption, the observatory said.
—Alex Sundby, CBS News, 4 June 2024
See All Example Sentences for tephra
Cite this Entry
“Tephra.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tephra. Accessed 1 Mar. 2025.
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