What is the CARIBEWAVE* Exercise?

* Formerly known as CARIBEWAVE / LANTEX

CARIBEWAVE (Caribbean Tsunami Warning Exercise) is a tsunami exercise held annually in the Caribbean, including Puerto Rico and the Virgin Islands, under the direction of UNESCO and the Pacific Tsunami Warning Center.  Since 2013 this exercise has been held annually under the name CARIBEWAVE / LANTEX (Caribbean and Northwestern Atlantic Tsunami Joint Exercise).  In Puerto Rico this exercise was held from 2009 to 2013 under the name LANTEX (Large Atlantic Tsunami Exercise) and from 2013 under the name CARIBEWAVE / LANTEX.

In the Puerto Rico and the Virgin Islands Region, this exercise is held under the leadership of the Puerto Rico Seismic Network (PRSN) and has counted on the participation of all emergency agencies within our area of responsibility year after year.

The purpose of the CARIBEWAVE exercise is to improve the effectiveness the Tsunami Warning System along the Caribbean coast.  The exercise provides an opportunity for emergency management organizations throughout the region to test their operational lines of communications, review their tsunami response procedures, and to promote tsunami preparedness.  Regular exercises to test the response plans are essential to maintain adequate emergency preparedness.  This is particularly true for the Caribbean, where tsunamis are rare, but can have a very high impact.  We invite all emergency management organizations (EMO) to participate in this exercise.

The objectives of the CARIBEWAVE Exercise are to test and evaluate the operations of the Caribbean Tsunami Warning System (Caribe EWS), to validate preparedness response to a tsunamis (which are test protocols and communications systems between tsunami warning centers and the tsunami warning focal points), and the use of the PTWC (Pacific Tsunami Warning Center) enhanced tsunami products  for the Caribbean, as well as assist in tsunami preparedness efforts of the emergency management agencies in those areas.

CARIBE WAVE 2016 Exercise is held under the framework of the US National Weather Service (NWS), the National Oceanographic and Atmospheric Administration (NOAA) Tsunami Program and the Intergovernmental Coordination Group for Tsunami and Other Coastal Hazards Warning System for the Caribbean and Adjacent Regions (ICG/CARIBE EWS) of the UNESCO.  This tsunami exercise is being conducted to assist with tsunami preparedness efforts throughout the Caribbean region. Recent tsunamis, such as those in the Indian Ocean (2004), Samoa (2009), Haiti (2010), Chile (2010, 2014, 2015), and Japan (2011), attest to the importance of tsunami response proper planning.  Although most tsunamis are generated by earthquakes, they may also be caused by submarines landslides, volcanic eruptions or impacts of celestial bodies.  Since 1842, at least 3,510 people have lost their lives because of the tsunamis in the Caribbean.  In addition to tsunamis, the region also has a long history of destructive earthquakes.  Historical records show that major earthquakes have struck the Caribbean region many times during the past 500 years.  Within the region there are multiple fault segments and submarine features that could be the source of earthquake and landslide generated tsunamis.  The perimeter of the Caribbean plate is bordered by no fewer than four major plates (North America, South America, Nazca, and Cocos). Subduction occurs along the eastern and northeastern Atlantic margins of the Caribbean plate.  Normal, transform and strike slip faulting characterize northern South America, eastern Central America, the Cayman Ridge and Trench and the northern plate boundary (Benz et al, 2011).

In addition to the local and regional sources, the region is also threatened by far field tsunamis/trans-Atlantic tsunamis, like that of 1755.  With nearly 160 million people (Caribbean, Central America and Northern South America) now living in this region and a major earthquake occurring about every 50 years, the question is not if another major tsunami will happen, but when it happens will the region be prepared for the tsunami impact. The risks of major earthquakes in the Caribbean, and the possibility of a resulting tsunami, are real and should be taken seriously.


Intergovernmental Oceanographic Commission. 2015. Exercise Caribe Wave 16. A Caribbean and Northwestern Atlantic Tsunami Warning Exercise, 17 March 2016 (Venezuela and Northern Hispaniola Scenarios). Volume 1: Participant Handbook. IOC Technical Series No. 125 vol.1. Paris: UNESCO. (English)