3. Figure, Graph showing the daily occurrence of long-period earthquakes, prior to the May 8, 2004 eruption of Volcano Nyamuragira. The five squares respectively indicate different swarms of earthquakes recorded prior to Nyamuragira eruption of 8, 2004.

3. Figure, Graph showing the daily occurrence of long-period earthquakes, prior to the November 27, 2006 eruption of Volcano Nyamuragira. The four letters respectively indicate different swarms of earthquakes recorded prior to Nyamuragira eruption of 27, 2006.

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