The volcanoes comprising the Garibaldi chain are adjacent to the highly populated southwest portion of British Columbia. Unlike the central Cascade Arc, renewed volcanic activity in the Garibaldi Belt at a single feeder to create stratovolcanoes is not typical. Instead, volcanic activity results in the formation of volcanic fields. Of the entire Cascade Arc, the Garibaldi chain has the lowest rate of volcanic activity. In the past two million years, the volume of erupted material in the Garibaldi Belt has been less than 10% of that in the U.S. states of California and Oregon and about 20% of that within the U.S. state of Washington. As a result, the risk of eruptions throughout this part of the Cascade Arc is minor. Individual volcanoes and volcanic fields remain quiet for a long period of time and certain vents may never erupt again. However, considerable volcanic activity has taken place in the geologically recent past, most notably the explosive eruption that occurred at the Mount Meager massif 2,350 years ago.