  The Chandra X-ray data of the central Virgo cluster are re-examined to reveal
a triple-ring structure around the galaxy M87, reminiscent of the spectacular
triple-ring pattern of the SN1987A in the Large Magellanic Cloud (LMC). In the
sky plane, the two apparent smaller ellipses are roughly aligned along the M87
jets; the larger ring centers at the M87 nucleus and is likely a circle roughly
perpendicular to the M87 jet. Certain similarities of these two triple-ring
structures might hint at similar processes that operate in these two systems
with entirely different sizes and mass scales. We suspect that a major merging
event of two galaxies with nuclear supermassive black holes (SMBHs) might
create such a triple-ring structure and drove acoustic and internal gravity
waves far and near. The M87 jets are perhaps powered by a spinning SMBH
resulting from this catastrophic merging event.
