The volcano showed very dramatic activity yesterday.
A strong eruptive episode (likely to be classified as paroxysm) occurred from the summit crater at about 02:45 AM local time. The lava fountaining episode threw glowing lava bombs and blocks up to several dozen meters; some lava jets might have surpassed 100 meters above the crater.
Incandescent rockfall avalanches were observed descending in all edifice directions.
Copious white-to-grey ash emissions accompanied the event.
This was Fuego a few hours ago…CONRED pic.twitter.com/vTXfKfRVna
— Volcaholic (@volcaholic1) August 4, 2026
ATENCIÓN Autoridades en Guatemala declaran Alerta Naranja, por incremento en la actividad del Volcán de Fuego Esta noche continúan las explosiones y emisión de lava, piroclastos, gases y cenizas. La Conred inició evacuaciones preventivas en comunidades cercanas.Vía… pic.twitter.com/qZ1Wqls8jN
— Geól. Sergio Almazán (@chematierra) August 4, 2026