The recent finding suggests that Mars is geologically active with occurrences in the millions of years. There has been previous evidence of Mars' geologic activity.

Is Mars geologically active today?

Martian volcanic features range in age from Noachian (>3.7 billion years) to late Amazonian (< 500 million years), indicating that the planet has been volcanically active throughout its history, and some speculate it probably still is so today. ... Magma on Mars likely ascends in a similar manner to that on Earth.

Is Mars volcano still active?

Mars today has no active volcanoes. Much of the heat stored inside the planet when it formed has been lost, and the outer crust of Mars is too thick to allow molten rock from deep below to reach the surface.