It's debatable .... there are many assumptions used in the various testing methods.
Mt. Etna – erupted 2100 years ago, but rocks were dated 25 million years ago.
Sunset Crater, Northern Arizona – erupted in 1065 AD, but rocks were dated 200,000 years old.
Lava flows at Mt. Ngaurhoe, New Zealand – erupted in 1949, 1954, but rocks dated 275,000 yrs old.
Hualalai basalt, Hawaii erupted 200 years ago, but rocks were dated 1.4 to 22 million yrs old.
Mt. Etna basalt, Sicily, erupted in 1971, but rocks were dated 140,000 to 350,000 yrs old.
Mount St. Helens erupted in 1980, but rocks were dated up to 2.8 million years old.
inconsistency all over the place
The fact is there is a lot we do not know .... so theories are created as possibilities about how things could have/might have happened .... some accept it as fact .... some not .... whatever floats one's boat ;o)
There is evidence and then interpretation of evidence and there are many interpretations of the evidence.