Explanation:

Recently, Semeru volcano erupted in Indonesia’s East Java province. Other volcanoes, such as the Merapi volcano (Java) and Sinabung volcano (Sumatra), also erupted recently.

• Semeru - also known as "The Great Mountain" - is the highest volcano in Java and one of the most active.
• It previously erupted in December, 2019.
• Indonesia, with the maximum number of active volcanoes in the world, is prone to seismic upheaval due to its location on the Pacific’s Ring of Fire. 
• Semeru volcano is also the part of the Island arcs formed by the subduction of the Indo-Australian plate below Sunda Plate (part of Eurasian Plate). The trench formed here is called Sunda trench whose major section is the Java Trench.

Hence both statements are correct.