41. Officials at the Seismological Institute in Goma could not immediately be reached for comment. 42. An earthquake on Monday rocked eastern Bulgaria, according to the National Seismological Institute. 43. A moderate earthquake rattled southern Bulgaria on Monday, the National Seismological Institute announced. 44. The Georgian seismological station said the quake had a magnitude of 5 or 6. 45. Seismological Society of America : http : / / www . seismosoc . org/46. Mexico's National Seismological Service recorded the quake at magnitude 5.7. 47. Details were presented Wednesday at the annual meeting of the Seismological Society of America. 48. It has a small meteorological observatory and plans are afoot for a seismological observatory. 49. The Seismological Service of Chile was also created. 50. The Seismological Observatory in Skopje, in neighboring Macedonia, registered about 20 minor tremors.
