El Hierro volcano (Canary Islands, Spain): increased area of upwelling muddy water and discoloration of sea water, but eruption not likely to form an island
The above link is packed full of excellent information about active volcanos, including the continued eruption off the coast of one of the Canary Islands. I highly recommend this site, as it explains the dynamics of various eruptions throughout the world.
Indeed the volcano off the Canary Islands is still in eruption phase, and upwelling material and gases from under the Atlantic Ocean. It has not formed and island, for it requires more lava flows and a widening of the base of the volcanic cone to do that. There are still harmonic tremors in the area, as well as a GPS measured area of rising ground, and another of sinking ground. A nearby harbor has also been closed.
Over in my neck of the woods, in the Southern California desert, Salton Buttes volcano has had several micro-quakes, and Covington Flat volcano has had a couple. To the south of Salton Buttes, in Imperial County, near the town of Imperial, here has been a good many more localized micro-quakes this week. All these micro-quakes form roughly a line from Imperial up to Covington Flat, But I don't put any importance on that.
My documentary on the East California Rifting Zone is still making progress, although a bit slow as my schedule shifts, and as I take on a few other projects. I am getting some great interviews of people living around the volcanos and earthquake prone areas. Presently, I am shooting a documentary on a horse rescue operation in Landers, right next to the north side of Pipes Canyon volcano. According to local rumor, there had been a magma surface flow in that area on Dixie Mine Road right after the 7.4 Landers earthquake nearly 20 years ago. I'll ride out there and check the area out for signs of a flow!