Tsunami in Puerto Rico 2020, Puerto Rico

Tsunamis in Puerto Rico

In a total of 3 tidal waves classified as a tsunami since 1867 a total of 140 people died in Puerto Rico. Tsunamis therefore occur only rarely here.

The strongest tidal wave registered in Puerto Rico so far reached a height of 6.1 meters. At this Tsunami on 11/18/1867 no losses of human lifes have been registered.

The biggest impact in terms of lifes, injuries, destroyed homes and economy had been a tsunami on 10/11/1918. A tidal wave of up to six meters killed 140 humans and destroyed vast areas.

Other natural hazards in Puerto Rico:
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Tsunami in Puerto Rico 2020, Puerto RicoTsunamis are caused by earthquakes or other seismic eruptions on ground of an oceans and can cause massive tidal waves, which run with enormous force on land, causing great devastation. Especially in regions with only few tsunamis, the damage is often drastic, as the population does not expect tsunamis and thus hardly takes any protective measures. Even relatively small flood waves can lead to high losses and financial damage.

The marked positions on the map represent the most effected regions within the past 160 years.

The largest tsunamis in Puerto Rico since 1867

DateCauseMax. tidal waveFatalitiesTotal damage
10/11/1918Earthquake, landslide in Puerto Rico (Puerto Rico: Mona Passage) with a magnitude of 7.1. The tsunami also reached , Virgin Islands.6 m140
03/17/1868Earthquake on the Virgin Islands (Virgin Islands)1.5 m0
11/18/1867Earthquake on the Virgin Islands (Virgin Islands) with a magnitude of 7.5. The tsunami caused damages in 9 further countries. A total of 24 humans died.6.1 m0

These evaluations are based on data from the Global Historical Tsunami Database of the National Geophysical Data Center, NOAA, and World Data Service (NGDC/WDS), doi:10.7289/V5PN93H7. Individual data have been summarized or translated.
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