>> hello, everyone. our coverage of hurricane irma continues in just a moment. we're also following the breaking news out of mexico where we're getting initial reports of a powerful earthquake striking in the sea off the coast of chiapas, mexico. the u.s. geological survey says it is a magnitude 8 tremor, felt as far away as mexico city. jana pursley of the u.s. geological survey joins me on the line now. thank you for being with us. what can you tell us about this magnitude 8 quake? >> good evening. the earthquake struck about 11:49 p.m. in chiapas, mexico. at this point the magnitude is still 8.0. it will be likely adjusted as the time goes on and we get more data. the quake is shallow. it has the potential of causing tsunami for the coast of mexico and central america, possibly south america as well.