nogami says when magma rises from deep underground, pressure increases and caused potential eruptions. but in the case of nishinoshima the gases have the dissolved in the sea water and pressure has dropped. nogami says this has probably staved off a massive eruption and has instead caused the continued lava flows. >> translator: the lava is currently continuing to flow going southward. we need to research how this magma system is working since there are still many unknowns. >> reporter: the researchers says they plan to carry out further surveys in the hopes of shedding light on the mechanisms of other sea eruptions. mitsuko nishikawa, nhk world. >>> yes, it's time for world weather. several tropical systems are brewing in the western pacific. sayaka mori is here with the details. >> yes. the western pacific has been very active so far this year. we have four tropical systems to talk about. one is located near the philippines and the other a severe tropical storm is now heading towards guam. and then a tropical depression near the marshall islands. this one may become a tropical storm

we'll see if we get it on magma abedini, we hope your husband can make it home for your daughter earsthday. jordan sec low, thanks for your work on this as well. we appreciate it. >> thanks leeland. >> up next on america's news headquarters hush money and keeping secrets from his wife. new details in the bill cosby scandal. what we're learning now. >>> donald trump is doubling down on senator john mccain. we'll have a fair and balanced political debate coming up. ticket when you spend $10. hey terry stop they have a special! so, what did you guys think of the test drive? i love the jetta. but what about a deal? terry, stop! it's quite alright... ok, you know what? we want to make a deal with you. we're twins, so could you give us two for the price of one? come on, give us a deal. look at how old i am. do you come here often? he works here, terry! you work here, right? yes... ok let's get to the point. we're going to take the deal. get a $1000 volkswagen reward card on select 2015 jetta models or lease a 2015 jetta s for $139 a month after $1000 volkswagen bonus. watch as these magnifi