Solomon Islands earthquakes

M5.5 earthquake 33 km SE of Malango, Solomon Islands

A magnitude 5.5 earthquake struck 33 km SE of Malango, Solomon Islands on Thu, Apr 21, 1977, 12:20 PM GMT+11 (01:20 UTC), 32 km (20 mi) below the surface.

A larger quake followed: M7.5 103 km SE of Honiara, Solomon Islands. This one was a foreshock.

Tandai forecastMore in Solomon Islands

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
5.5 (mb, body-wave), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1977-04-21 01:20:32 UTC
Depth
32.0 km (19.9 mi), shallow
Epicenter
9.889° S, 159.953° E
Strongest shaking
IV, light shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
5.5mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed
5.61Mw, momentISC-GEM global catalogFinal · ±0.27

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
IV, light shaking
Peak ground acceleration
5.5% of gravity
Peak ground velocity
1.1 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
79

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.5 and up: 59 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 5.168 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 43 km away
  2. 5.221 km N of Malango, Solomon Islands · 18062 days ago · 33 km deep · 50 km away
  3. 4.929 km ESE of Malango, Solomon Islands · 18062 days ago · 33 km deep · 15 km away
  4. 5.459 km SE of Honiara, Solomon Islands · 18062 days ago · 22 km deep · 40 km away
  5. 5.255 km ESE of Malango, Solomon Islands · 18062 days ago · 33 km deep · 25 km away
  6. 5.07 km SE of Malango, Solomon Islands · 18062 days ago · 33 km deep · 26 km away
  7. 5.128 km SE of Malango, Solomon Islands · 18062 days ago · 27 km deep · 5 km away
  8. 7.5103 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 86 km away
  9. 4.957 km SE of Honiara, Solomon Islands · 18062 days ago · 34 km deep · 39 km away
  10. 5.8113 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 86 km away
  11. 5.3105 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 86 km away
  12. 4.7114 km SE of Honiara, Solomon Islands · 18061 days ago · 45 km deep · 90 km away
  13. 5.352 km ESE of Malango, Solomon Islands · 18061 days ago · 31 km deep · 23 km away
  14. 5.0113 km ESE of Honiara, Solomon Islands · 18061 days ago · 21 km deep · 96 km away
  15. 4.768 km SE of Honiara, Solomon Islands · 18061 days ago · 41 km deep · 47 km away
  16. 6.0123 km SE of Honiara, Solomon Islands · 18061 days ago · 33 km deep · 94 km away
  17. 4.898 km ESE of Honiara, Solomon Islands · 18061 days ago · 11 km deep · 84 km away
  18. 5.170 km ESE of Malango, Solomon Islands · 18061 days ago · 20 km deep · 37 km away
  19. 4.965 km ESE of Malango, Solomon Islands · 18061 days ago · 8 km deep · 33 km away
  20. 5.0117 km SE of Honiara, Solomon Islands · 18061 days ago · 51 km deep · 92 km away
  21. 5.6127 km SE of Honiara, Solomon Islands · 18061 days ago · 33 km deep · 97 km away
  22. 5.080 km SE of Honiara, Solomon Islands · 18061 days ago · 33 km deep · 56 km away
  23. 4.961 km SE of Honiara, Solomon Islands · 18061 days ago · 26 km deep · 37 km away
  24. 4.638 km ESE of Malango, Solomon Islands · 18061 days ago · 24 km deep · 9 km away
  25. 5.471 km SE of Malango, Solomon Islands · 18061 days ago · 20 km deep · 39 km away
  26. 5.4111 km SE of Honiara, Solomon Islands · 18061 days ago · 12 km deep · 81 km away
  27. 4.796 km SE of Malango, Solomon Islands · 18061 days ago · 33 km deep · 63 km away
  28. 5.145 km ESE of Malango, Solomon Islands · 18061 days ago · 22 km deep · 16 km away
  29. 6.0112 km SE of Honiara, Solomon Islands · 18061 days ago · 51 km deep · 83 km away
  30. 4.667 km ESE of Malango, Solomon Islands · 18060 days ago · 18 km deep · 36 km away
  31. 5.354 km ESE of Malango, Solomon Islands · 18060 days ago · 33 km deep · 24 km away
  32. 5.334 km SE of Malango, Solomon Islands · 18060 days ago · 33 km deep · 2 km away
  33. 5.3102 km SE of Honiara, Solomon Islands · 18060 days ago · 25 km deep · 79 km away
  34. 5.139 km SSE of Honiara, Solomon Islands · 18060 days ago · 20 km deep · 26 km away
  35. 4.9111 km SE of Honiara, Solomon Islands · 18060 days ago · 33 km deep · 85 km away
  36. 5.098 km SE of Honiara, Solomon Islands · 18060 days ago · 1 km deep · 73 km away
  37. 4.6114 km SE of Malango, Solomon Islands · 18059 days ago · 18 km deep · 81 km away
  38. 5.260 km ESE of Malango, Solomon Islands · 18059 days ago · 26 km deep · 28 km away
  39. 5.057 km SE of Honiara, Solomon Islands · 18059 days ago · 33 km deep · 33 km away
  40. 5.0106 km SE of Honiara, Solomon Islands · 18059 days ago · 33 km deep · 87 km away
  41. 5.443 km ESE of Malango, Solomon Islands · 18058 days ago · 29 km deep · 13 km away
  42. 4.6112 km SE of Honiara, Solomon Islands · 18058 days ago · 33 km deep · 79 km away
  43. 4.7120 km SE of Honiara, Solomon Islands · 18058 days ago · 15 km deep · 93 km away
  44. 4.691 km SE of Honiara, Solomon Islands · 18057 days ago · 20 km deep · 63 km away
  45. 4.8Solomon Islands · 18057 days ago · 33 km deep · 90 km away
  46. 5.1113 km SE of Honiara, Solomon Islands · 18055 days ago · 56 km deep · 83 km away
  47. 5.1Solomon Islands · 18054 days ago · 8 km deep · 12 km away
  48. 5.591 km ESE of Honiara, Solomon Islands · 18051 days ago · 19 km deep · 77 km away
  49. 4.325 km SE of Malango, Solomon Islands · 18051 days ago · 33 km deep · 9 km away
  50. 4.818 km ESE of Malango, Solomon Islands · 18051 days ago · 41 km deep · 19 km away
  51. 5.142 km SE of Malango, Solomon Islands · 18050 days ago · 33 km deep · 9 km away
  52. 4.776 km ESE of Malango, Solomon Islands · 18048 days ago · 19 km deep · 44 km away
  53. 4.194 km SE of Malango, Solomon Islands · 18048 days ago · 55 km deep · 61 km away
  54. 5.155 km SE of Honiara, Solomon Islands · 18045 days ago · 16 km deep · 47 km away
  55. 4.774 km SE of Honiara, Solomon Islands · 18038 days ago · 18 km deep · 51 km away
  56. 5.7113 km SE of Honiara, Solomon Islands · 18032 days ago · 33 km deep · 81 km away
  57. 5.078 km ESE of Malango, Solomon Islands · 18024 days ago · 10 km deep · 46 km away
  58. 4.7113 km SE of Malango, Solomon Islands · 18024 days ago · 33 km deep · 80 km away
  59. 5.79 km SSW of Malango, Solomon Islands · 18003 days ago · 11 km deep · 34 km away

Before

  1. 5.550 km SSE of Honiara, Solomon Islands · 18062 days ago · 32 km deep · 25 km away
  2. 5.549 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 30 km away
  3. 6.133 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 31 km away
  4. 5.756 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 38 km away
  5. 7.5105 km ESE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 95 km away
  6. 7.566 km SE of Honiara, Solomon Islands · 18062 days ago · 19 km deep · 43 km away
  7. 5.988 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 72 km away
  8. 6.759 km SE of Honiara, Solomon Islands · 18062 days ago · 33 km deep · 41 km away

Earthquakes todaySolomon Islands earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000ngr (also filed as iscgem700063). Read Fri, Oct 2, 2026, 5:35 PM UTC.