The Icelandic authorities will place various panels around the volcano Hekla , warning of a possible eruption. They are in Icelandic and English, and will include a QR code to download an application and receive an alert call for the onset of eruption. It is indeed risky to venture on the volcano, because it can erupt without giving you time to evacuate the area : in recent events in 1970, 1980, 1991 and 2000 , scientists had only 30-80 minutes to issue an evacuation notice . ( Iceland Review on line )
According mbl.is site, there are now more magma in the magma chamber before Hekla last erupted , and since 2006. The magma chamber is located 10-20 km. depth , and inflation of the volcano can be clearly noticed on the surface, but only by the GPS network IMO / Univ. Iceland Geology Dpt . A possible eruption depends on the mobile fraction of the magma in the magma chamber . The risk is present, and the latency to transmit a danger opinion is short ! (mbl.is/ Páll Einarsson mbl.is / Páll Einarsson , professor in geophysics at the University of Iceland )
In the Ogasawara Islands, Nishino -shima volcano ever present Strombolian activity. A video on You tube taking from cruise ship reveals an island surmounted by a large plume of steam and surrounded by steam, due to the lava entering the sea and / or benefits of strombolian activity , clearly visible at night. The author of the video also indicates a large area of discolored water .
The Dukono on the island of Halmahera / Moluccas always present an explosive activity , Strombolian type , on March 18 marked by a rising ash plume 2,400 meters before spreading to the SO on 80 nautical miles . ( VAAC Darwin / via Volcanodiscovery )
On the island of Java, the Slamet , in alert 2 and banned of access , has an activity characterized by small explosions. A Volcanodiscovery guide , Andy , said that explosions are visible Blambangan village , but because of the ban, the dome is not visible.
In Mexico, the Fuego de Colima present intermittent explosions, whose number reached one hundred per day . Most explosions are phreatic type, accompanied by a white plume . Extrusion of lava accompanied by avalanches of incandescent blocks is visible at night . ( Diario de Colima )