<p>Gunung Ijen dekat dengan dua daerah berpenduduk sangat padat di Jawa Timur: Banyuwangi dan Bondowoso. Dua kali sebulan, tim pengawas Gunung Api Gunung Ijen naik gunung dan turun ke kawah untuk mengukur kadar gas beracun dan aktivitas seismik.
</p><p>The volcano looms over two highly populated regencies in East Java: Banyuwangi and Bondowoso. Twice a month,  team from the Indonesian Center for Volcanology and Geo-hazard Mitigation hikes up the volcano and down into crater measure the toxic gas levels and seismic activity.
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Photo: Swiny Andina, USAID Indonesia
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/43518033@N03">USAID Indonesia</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/usaid-indonesia/29537310335/">Mengamati Aktivitas Seismik Gunung Ijen dari Kawah</a>