Not odd; it's right on the Mid-Atlantic Rift.
Just in the last 30 days quakes along the Central MAR area (Southern MAR included too):
earthquake.usgs.gov
17 of 12679 earthquakes in map area. (the 12,679 is the 30 day global EQ count)
Only List Earthquakes Shown on Map
Magnitude
Format
Largest Magnitude First
6.9
central Mid-Atlantic Ridge
2020-09-18 16:43:59 (UTC-05:00)10.0 km
6.7
central Mid-Atlantic Ridge
2020-09-06 01:51:19 (UTC-05:00)10.0 km
6.5
central Mid-Atlantic Ridge
2020-08-30 16:20:29 (UTC-05:00)10.0 km
6.0
178 km ENE of Georgetown, Saint Helena
2020-08-22 03:38:01 (UTC-05:00)10.0 km
5.9
Tristan da Cunha region
2020-08-31 16:18:02 (UTC-05:00)10.0 km
5.7
central Mid-Atlantic Ridge
2020-09-16 22:00:17 (UTC-05:00)10.0 km
5.4
179 km ENE of Georgetown, Saint Helena
2020-08-22 05:21:29 (UTC-05:00)10.0 km
5.0
southern Mid-Atlantic Ridge
2020-09-11 18:54:12 (UTC-05:00)10.0 km
5.0
southern Mid-Atlantic Ridge
2020-09-11 18:46:04 (UTC-05:00)10.0 km
4.9
80 km ENE of Georgetown, Saint Helena
2020-08-28 19:25:43 (UTC-05:00)10.0 km
4.8
central Mid-Atlantic Ridge
2020-09-07 16:18:59 (UTC-05:00)10.0 km
4.8
central Mid-Atlantic Ridge
2020-08-31 04:56:03 (UTC-05:00)10.0 km
4.7
central Mid-Atlantic Ridge
2020-09-10 17:26:38 (UTC-05:00)10.0 km
4.6
central Mid-Atlantic Ridge
2020-09-07 16:22:43 (UTC-05:00)10.0 km
4.6
central Mid-Atlantic Ridge
2020-09-06 03:29:47 (UTC-05:00)10.0 km
4.6
3 km WSW of Mutuípe, Brazil
2020-08-30 05:44:31 (UTC-05:00)10.0 km
4.6
Tristan da Cunha region
2020-08-20 12:08:00 (UTC-05:00)10.0 km