| Date & time | Mar 18, 2023 19:25:21 UTC - |
| Local time at epicenter | Sunday, Mar 19, 2023 at 3:25 am (GMT +8) |
| Status | Confirmed |
| Magnitude | 4.5 |
| Depth | 26.0 km |
| Epicenter latitude / longitude | 9.4°S / 119.04°E  (Sumba Strait, Indonesia) |
| Antipode | 9.4°N / 60.96°W |
| Shaking intensity | Light shaking near epicenter |
| Felt | 0 reports |
| Primary data source | RaspberryShake (RaspberryShake) |
| Nearest volcano | Gilbanta (113 km / 70 mi) |
| Nearby towns and cities | 103 km (64 mi) SSW of Komodo (pop: 2,000) | Show on map | Quakes nearby 110 km (68 mi) SSE of Bima (pop: 67,000) | Show on map | Quakes nearby 115 km (71 mi) SE of Dompu (pop: 49,000) | Show on map | Quakes nearby 137 km (85 mi) SW of Labuan Bajo (pop: 188,700) | Show on map | Quakes nearby 137 km (85 mi) W of Waingapu (pop: 48,800) | Show on map | Quakes nearby 179 km (111 mi) WSW of Ruteng (Kabupaten Manggarai) (pop: 34,600) | Show on map | Quakes nearby 203 km (126 mi) ESE of Pototano (Kabupaten Sumbawa) (pop: 5,000) | Show on map | Quakes nearby 205 km (127 mi) ESE of Sumbawa Besar (pop: 52,700) | Show on map | Quakes nearby 107 km (66 mi) WNW of Pulau Sumba Island (pop: 686,100) | Show on map | Quakes nearby 135 km (84 mi) ESE of Pulau Sumbawa Island (pop: 1,391,300) | Show on map | Quakes nearby |
| Weather at epicenter at time of quake | Broken Clouds  26.5°C (80 F), humidity: 83%, wind: 4 m/s (7 kts) from E |
| Estimated seismic energy released | 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | about seismic energy |
| Mag. | Depth | Location | Source |
| 4.5 | 26 km | Sumba Region, Indonesia | RaspberryShake |
| 4.5 | 26 km | SUMBA REGION, INDONESIA | EMSC |
