Overview
- USGS measured the mainshock at M5.9 and 62.7 km deep, EMSC reported M5.9 at 55 km, GFZ listed M6.0 at 10 km, and India’s NCS logged M6.0 at 27 km near the Yenangyaung/Akyab area.
- India’s NCS recorded a M5.3 event about 15 minutes after the mainshock, and officials said monitoring for additional aftershocks is underway.
- Strong shaking was felt across Kolkata, parts of West Bengal and Bangladesh, prompting brief evacuations, with no immediate reports of casualties or major structural damage.
- NCS reported a separate M4.1 quake in Bangladesh earlier on February 3 and a M4.1 in Assam–Arunachal on February 5, underscoring continued regional seismicity.
- USGS issued a Green alert for low likelihood of casualties and losses, and preliminary analysis places the activity near active systems such as the Kabaw/Sagaing faults in a well-known plate boundary zone.