Magnitude mb 5.5
Region TONGA
Date time 2013-02-10 09:37:13.0 UTC
Location 18.56 S ; 174.75 W
Depth 128 km
map [link to static2.emsc.eu]

it's very close to Late volcano

Volcano Type: Stratovolcano
Volcano Status: Historical
Last Known Eruption: 1854
Summit Elevation: 540 m 1,772 feet
Latitude: 18.806°S 18°48'20"S
Longitude: 174.65°W 174°39'0"W
The small, 6-km-wide circular island of Late, lying along the Tofua volcanic arc about 55 km WSW of the island of Vavau, contains a 400-m-wide, 150-m-deep summit crater with an ephemeral lake. The largely submerged basaltic-andesite to andesitic volcano rises 1500 m from the sea floor, with its conical summit reaching 540 m above sea level...
[link to www.volcano.si.edu]