from the L.A. Times
A mud-spewing fissure in the ocean floor has given birth to a tiny island in the Caribbean.
The island, 500 feet long but breaching the ocean's surface by only a few inches, was discovered recently about five miles northeast of Trinidad, said seismologist Roderick Stewart.
An advisory has been issued for small boats, which could lose buoyancy because of gas bubbling from the fissure or run aground in the mud.
The danger may be short-lived. Large waves are washing away the mud, and the fissure's flow may fade. Temporary island emerged in the area in 1964 and 2001.
and the online Lakeland Ledger
Is it worth google-map searching for??...
The islands are created by what scientists call "mud volcanoes," a varying mixture of water, sediment and compressed pockets of natural gas that usually emerge along fault lines. A mud volcano even erupted on land here in the late 1990s, inundating part of a village. No one was injured.
Sediment deposits from rivers in nearby South America contribute to the phenomenon.