probably coincidence...

[quaqualita]

while I'm not saying that there can't be any connection between stroms and EQs, maybe you should know earthquakes in the M2.5 - 4 range are very common here in the area. The image in the post above shows there are quite a few fault lines in the Dominican Republic, here a list of such 'mini' quakes happend only in November / December - most of those never make it to the USGS website:

Date / Time / lat / long / depth / magnitude
2007/11/01 01:16:15.86 18.457 -68.185 150.5 3.7
2007/11/02 18:11:10.55 19.552 -68.817 109.9 3.7
2007/11/03 02:57:38.70 19.778 -68.126 38.5 3.0
2007/11/03 04:41:32.64 19.392 -68.955 147.1 3.8
2007/11/03 21:58:31.28 19.782 -67.944 55.7 3.1
2007/11/05 05:51:40.15 18.110 -68.077 85.2 3.3
2007/11/06 22:10:01.53 19.867 -70.081 7.7 4.2
2007/11/07 03:41:07.84 18.840 -67.963 24.7 3.1
2007/11/08 01:00:20.91 18.417 -67.722 22.6 3.1
2007/11/08 08:19:58.90 18.895 -67.540 10.0 3.0
2007/11/08 23:17:34.11 18.062 -67.827 57.3 2.9
2007/11/11 01:45:40.63 18.585 -69.387 25.0 3.4
2007/11/12 08:00:18.22 19.144 -68.365 56.4 3.1
2007/11/12 09:04:36.87 19.748 -67.992 38.5 3.3
2007/11/12 22:23:00.88 17.848 -68.445 108.3 3.5
2007/11/14 13:58:38.88 20.970 -69.238 2.8 3.9
2007/11/14 17:24:26.92 18.108 -68.671 153.3 3.6
2007/11/14 17:25:50.32 18.432 -68.929 173.0 3.8
2007/11/16 14:52:59.66 18.154 -68.864 160.2 3.6
2007/11/18 11:52:44.69 19.787 -67.895 51.0 3.3
2007/11/18 12:52:06.58 19.524 -67.894 3.8 2.9
2007/11/18 19:59:42.48 19.028 -68.450 31.1 0 3.2
2007/11/20 02:24:44.06 19.534 -67.773 36.7 2.9
2007/11/20 05:22:50.52 18.264 -67.860 115.6 3.2
2007/11/21 04:39:53.26 18.381 -68.947 158.7 3.8
2007/11/23 13:14:17.32 18.547 -68.840 115.2 3.6
2007/11/27 00:50:28.57 18.327 -67.573 106.8 3.0
2007/12/01 00:11:04.96 18.943 -67.637 11.9 3.0
2007/12/02 22:15:02.08 18.007 -68.602 33.6 3.3
2007/12/03 11:12:00.37 17.949 -68.430 102.2 3.4
2007/12/08 09:39:41.29 19.047 -69.361 101.4 3.9
2007/12/08 16:14:53.94 19.003 -68.285 136.0 3.9
2007/12/09 07:20:08.40 19.689 -69.086 163.5 4.1
2007/12/11 21:48:42.13 20.006 -70.063 59.8 3.7

source: http://redsismica.uprm.edu/english/
search results for EQs in November and December 2007, magnitude 2.5 - 5, latitude 18-20 and longitude 68-70.