Asteroid Impact Risk Assessment: Rationalizing the Threat

Rumpf, Clemens

doi:10.1007/978-3-030-01000-3_12

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…The overpressure values from the impact-induced shock wave were obtained with (15). The distance D 1 in ( 14) is the distance to a 1 MT TNT equivalent explosion that experiences the same overpressure effects as the distance D from impact energy E. Both the distance D 1 and the pressure P D , for each impact scenario, are shown in Table 8.…”

Section: Overpressurementioning

confidence: 99%

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Short-Term Consequences of Asteroid Impacts into the Ocean: A Portuguese Case Study

et al. 2022

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Asteroid impacts are a proven global threat, meaning that any location on Earth might be a subject to their consequences. Such collisions are not likely in any person’s lifetime, but their aftermath could be catastrophic. As Earth’s surface is mostly water, a water impact is more probable than a ground impact, and tsunami waves could pose a significant threat. This study expands the knowledge about asteroid impacts in the ocean and their regional environmental consequences. Three asteroids were assumed to impact the Earth: (1) the Apophis asteroid, a 370 m wide asteroid, (2) a 204 m in diameter asteroid representative of the average impactor on the near-Earth objects, and (3) a 5 km in diameter asteroid. We evaluated the consequences of all impacts for a specific case study, where the chosen impact location was the midpoint between Portugal’s mainland, Azores, and Madeira Islands. The cratering process, generated seismic shaking, overpressure, ejected material, induced thermal radiation, and tsunami waves were assessed, along with the global effects. The overpressure mainly causes structural damage. The thermal radiation can be devastating but has a short reach. The tsunami is undoubtedly the most far-reaching and threatening effect of an asteroid impact in the ocean.

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Section: Overpressurementioning

confidence: 99%

“…The virtual impacts of 315 asteroids included on NASA's NEO risk list were assessed in [15]. This assessment included the impact location probability distribution.…”

Section: Introductionmentioning

confidence: 99%