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触发了2022年毛纳洛阿火山爆发的原因
Kendra J Lynn1, Drew T Downs2, Frank A Trusdell2
1U.S. Geological Survey, Hawaiian Volcano Observatory, Hilo, HI, USA. klynn@usgs.gov.
Nature communications
|November 12, 2024
概括
了解火山动荡对于预测火山爆发至关重要. 这项研究在Mauna Loa进行.
科学领域:
- 火山学 火山学是一门学科.
- 地质化学 地质化学
- 地质物理学 地质物理学
背景情况:
- 区分火山骚乱和火山爆发的前期是一个全球性的挑战.
- 摩纳罗阿山2022年的喷发是在38年的休息和间歇性活动之后发生的.
- 矿物化学和多学科监测数据是预测喷发的关键.
研究的目的:
- 为了区分骚乱和火山爆发,使用毛纳洛阿火山最近的喷发作为案例研究.
- 为了改进火山爆发的预测模型.
- 为了展示Mauna Loa的管道系统的新模型.
主要方法:
- 集成矿物和化工学,流体包容度计和数值建模.
- 分析了同爆发性气柱测量,地震低中心分布和地震速度变化.
- 集成的地面变形数据和多学科监测综合.
主要成果:
- 确定了喷发前的2个月持续的岩入侵时期.
- 岩从3-5公里深处入到山顶火山口下方1-2公里.
- 开发了Mauna Loa火山火山水管系统的新模型.
结论:
- 对地质化学和仪器监测数据的关联增强了对岩系统的理解.
- 这种综合方法提高了区分火山动荡和火山爆发的能力.
- 该方法可用于改善全球其他火山系统的预测.
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