<P> On November 21, 2014, the volcano erupted again . An ash column was sent 5 km into the air, covering towns as far as 25 km away in ash . No fatalities were reported, and no evacuations took place . There were eruptions on January 10, 21 and 25, with the ash from the January 21 eruption falling in towns more than 15 miles (24 km) away . </P> <P> On 10 July 2015, there was another eruption . Another eruption occurred on Sunday, September 25, 2016, sending a plume of ash and smoke 10,000 ft into the sky . During December 2016, ashes plumes occurred once or twice a day . On Sunday, December 18, 2016, there were three eruptions . The biggest columns of ash reached 2 kilometers in height . </P> <P> Colima volcano experienced another strong explosion at 06: 27 UTC (00: 27 CST) on January 18, 2017 . The eruption spewed volcanic ash up to 4 km (13 123 feet) above the crater . </P> <P> The volcano is monitored by the Colima Volcano Observatory at the University of Colima, Mexico . A team analyzes, interprets and communicates every event that occurs at this volcano . </P>

Describe the changes that occurred within the colima volcano between 1998 and early 2011