M1.8 earthquake 16 km W of Volcano, Hawaii

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Hawaiian Volcano Observatory

Local time

Wed, Feb 28, 1973, 3:48 PM HST

UTC

1973-03-01 01:48:55 UTC

Depth

2.2 km (1.4 mi), shallow

Epicenter

19.422° N, 155.390° W

Region

Hawaii

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 2.9 km in depth

Depth from

From location

Station coverage gap

111°

Stations used

13

• Volcano, HawaiiPopulation 2,575. Forecast17 kmW
• Hilo, HawaiiPopulation 43,263. Forecast46 kmSW
• Honolulu, HawaiiPopulation 350,964. Forecast332 kmSE

After

1. 2.016 km S of Volcano, HawaiiThu, Mar 1, 6:41 PM HST · 19572 days ago · 5 km deep · 21 km away
2. 2.014 km S of Volcano, HawaiiFri, Mar 2, 12:48 AM HST · 19572 days ago · 7 km deep · 22 km away
3. 2.017 km NNE of P?hala, HawaiiFri, Mar 2, 2:44 AM HST · 19572 days ago · 10 km deep · 9 km away
4. 2.013 km SSE of Volcano, HawaiiSat, Mar 3, 12:01 AM HST · 19571 days ago · 6 km deep · 24 km away
5. 2.118 km N of P?hala, HawaiiSun, Mar 4, 5:42 AM HST · 19570 days ago · 11 km deep · 9 km away
6. 2.016 km S of Fern Forest, HawaiiSun, Mar 4, 11:29 AM HST · 19570 days ago · 7 km deep · 29 km away
7. 2.416 km SSW of Honoka‘a, HawaiiSun, Mar 4, 5:59 PM HST · 19569 days ago · 19 km deep · 58 km away
8. 2.82 km NW of Kailua-Kona, HawaiiSun, Mar 4, 7:26 PM HST · 19569 days ago · 19 km deep · 70 km away
9. 2.919 km W of Kalaoa, HawaiiSun, Mar 4, 8:09 PM HST · 19569 days ago · 5 km deep · 88 km away
10. 2.015 km SSE of Volcano, HawaiiMon, Mar 5, 6:02 AM HST · 19569 days ago · 7 km deep · 26 km away
11. 1.919 km WSW of Volcano, HawaiiMon, Mar 5, 11:11 PM HST · 19568 days ago · 7 km deep · 3 km away
12. 2.826 km ENE of Honaunau-Napoopoo, HawaiiTue, Mar 6, 1:45 AM HST · 19568 days ago · 6 km deep · 28 km away
13. 2.611 km SSE of Honaunau-Napoopoo, HawaiiTue, Mar 6, 8:15 AM HST · 19568 days ago · 9 km deep · 46 km away
14. 2.421 km N of P?hala, HawaiiTue, Mar 6, 5:29 PM HST · 19567 days ago · 6 km deep · 10 km away
15. 4.322 km W of Volcano, HawaiiTue, Mar 6, 6:49 PM HST · 19567 days ago · 11 km deep · 6 km away
16. 2.014 km S of Volcano, HawaiiWed, Mar 7, 4:36 AM HST · 19567 days ago · 8 km deep · 21 km away
17. 2.414 km S of Volcano, HawaiiWed, Mar 7, 6:40 AM HST · 19567 days ago · 7 km deep · 22 km away
18. 3.615 km S of Volcano, HawaiiWed, Mar 7, 6:51 AM HST · 19567 days ago · 10 km deep · 22 km away
19. 3.514 km S of Volcano, HawaiiWed, Mar 7, 5:32 PM HST · 19566 days ago · 10 km deep · 22 km away
20. 2.513 km S of Volcano, HawaiiThu, Mar 8, 2:09 AM HST · 19566 days ago · 7 km deep · 20 km away
21. 2.113 km SSE of Fern Forest, HawaiiThu, Mar 8, 4:45 AM HST · 19566 days ago · 7 km deep · 32 km away
22. 2.023 km N of P?hala, HawaiiThu, Mar 8, 9:30 AM HST · 19566 days ago · 3 km deep · 8 km away
23. 3.214 km SSE of Fern Forest, HawaiiThu, Mar 8, 5:54 PM HST · 19565 days ago · 7 km deep · 31 km away
24. 2.213 km N of P?hala, HawaiiFri, Mar 9, 6:28 PM HST · 19564 days ago · 9 km deep · 13 km away
25. 2.220 km W of Volcano, HawaiiSat, Mar 10, 6:44 AM HST · 19564 days ago · 10 km deep · 5 km away
26. 2.36 km SSW of Volcano, HawaiiSat, Mar 10, 12:10 PM HST · 19564 days ago · 29 km deep · 14 km away
27. 2.712 km N of Wai‘?hinu, HawaiiSun, Mar 11, 6:36 AM HST · 19563 days ago · 7 km deep · 37 km away
28. 2.113 km SE of Fern Forest, HawaiiSun, Mar 11, 9:13 AM HST · 19563 days ago · 5 km deep · 35 km away
29. 2.317 km ESE of Honaunau-Napoopoo, HawaiiSun, Mar 11, 1:49 PM HST · 19562 days ago · 7 km deep · 34 km away
30. 1.911 km S of Volcano, HawaiiSun, Mar 11, 2:25 PM HST · 19562 days ago · 5 km deep · 19 km away
31. 2.316 km SW of Volcano, HawaiiMon, Mar 12, 9:44 AM HST · 19562 days ago · 30 km deep · 9 km away
32. 2.615 km SW of Volcano, HawaiiMon, Mar 12, 9:44 AM HST · 19562 days ago · 30 km deep · 8 km away
33. 2.66 km WSW of Volcano, HawaiiTue, Mar 13, 4:33 AM HST · 19561 days ago · 13 km deep · 10 km away
34. 2.531 km SSW of Laup?hoehoe, HawaiiTue, Mar 13, 3:15 PM HST · 19560 days ago · 18 km deep · 36 km away
35. 3.06 km NNE of Waimea, HawaiiTue, Mar 13, 5:06 PM HST · 19560 days ago · 24 km deep · 78 km away
36. 2.99 km SE of Honaunau-Napoopoo, HawaiiWed, Mar 14, 7:20 PM HST · 19559 days ago · 11 km deep · 44 km away
37. 1.919 km WSW of Volcano, HawaiiThu, Mar 15, 2:31 AM HST · 19559 days ago · 8 km deep · 6 km away
38. 2.713 km SSE of Volcano, HawaiiThu, Mar 15, 7:56 AM HST · 19559 days ago · 8 km deep · 23 km away
39. 2.019 km W of Volcano, HawaiiThu, Mar 15, 1:17 PM HST · 19559 days ago · 8 km deep · 3 km away
40. 3.032 km E of Honaunau-Napoopoo, HawaiiThu, Mar 15, 2:51 PM HST · 19558 days ago · 47 km deep · 19 km away
41. 2.017 km NNE of P?hala, HawaiiThu, Mar 15, 8:34 PM HST · 19558 days ago · 10 km deep · 8 km away
42. 3.043 km W of Hawaiian Ocean View, HawaiiThu, Mar 15, 10:16 PM HST · 19558 days ago · 41 km deep · 91 km away
43. 2.234 km NW of Volcano, HawaiiFri, Mar 16, 9:40 AM HST · 19558 days ago · 6 km deep · 25 km away
44. 2.635 km SE of P?hala, HawaiiSat, Mar 17, 2:35 PM HST · 19556 days ago · 15 km deep · 49 km away
45. 1.914 km S of Volcano, HawaiiSun, Mar 18, 7:06 PM HST · 19555 days ago · 6 km deep · 21 km away
46. 2.511 km NNE of P?hala, HawaiiSun, Mar 18, 11:44 PM HST · 19555 days ago · 8 km deep · 15 km away
47. 2.45 km SE of Honaunau-Napoopoo, HawaiiMon, Mar 19, 10:14 PM HST · 19554 days ago · 7 km deep · 46 km away
48. 2.612 km S of Volcano, HawaiiWed, Mar 21, 7:30 AM HST · 19553 days ago · 34 km deep · 18 km away
49. 3.018 km WSW of Volcano, HawaiiWed, Mar 21, 8:11 AM HST · 19553 days ago · 9 km deep · 3 km away
50. 2.018 km WSW of Volcano, HawaiiWed, Mar 21, 8:14 AM HST · 19553 days ago · 12 km deep · 4 km away
51. 2.114 km ENE of P?hala, HawaiiThu, Mar 22, 1:45 PM HST · 19551 days ago · 9 km deep · 21 km away
52. 2.018 km NNE of P?hala, HawaiiFri, Mar 23, 4:25 AM HST · 19551 days ago · 8 km deep · 7 km away
53. 3.318 km WSW of Volcano, HawaiiFri, Mar 23, 2:39 PM HST · 19550 days ago · 6 km deep · 2 km away
54. 2.016 km S of Volcano, HawaiiSun, Mar 25, 5:53 AM HST · 19549 days ago · 7 km deep · 21 km away
55. 3.423 km ENE of H?lualoa, HawaiiMon, Mar 26, 9:56 AM HST · 19548 days ago · 12 km deep · 51 km away
56. 2.113 km SSE of Fern Forest, HawaiiMon, Mar 26, 11:31 AM HST · 19548 days ago · 8 km deep · 32 km away
57. 2.75 km S of Waimea, HawaiiTue, Mar 27, 12:55 AM HST · 19547 days ago · 10 km deep · 68 km away
58. 2.013 km S of Volcano, HawaiiTue, Mar 27, 4:34 AM HST · 19547 days ago · 8 km deep · 21 km away
59. 2.021 km WSW of Volcano, HawaiiTue, Mar 27, 4:59 PM HST · 19546 days ago · 6 km deep · 5 km away
60. 2.319 km NNE of P?hala, HawaiiTue, Mar 27, 5:28 PM HST · 19546 days ago · 5 km deep · 7 km away

The first 60 of 198.

Before

1. 3.222 km NW of Puako, HawaiiWed, Feb 28, 3:30 PM HST · 19573 days ago · 9 km deep · 99 km away
2. 2.018 km W of Volcano, HawaiiWed, Feb 28, 7:10 AM HST · 19574 days ago · 11 km deep · 2 km away
3. 2.31 km NW of P?pa‘ikou, HawaiiWed, Feb 28, 3:57 AM HST · 19574 days ago · 16 km deep · 51 km away
4. 1.918 km W of Volcano, HawaiiWed, Feb 28, 3:10 AM HST · 19574 days ago · 8 km deep · 2 km away
5. 2.316 km S of Volcano, HawaiiTue, Feb 27, 6:31 AM HST · 19575 days ago · 8 km deep · 23 km away
6. 2.018 km NNE of P?hala, HawaiiTue, Feb 27, 6:31 AM HST · 19575 days ago · 7 km deep · 7 km away
7. 2.85 km NE of P?hala, HawaiiMon, Feb 26, 12:11 PM HST · 19576 days ago · 7 km deep · 21 km away
8. 2.514 km SW of Volcano, HawaiiMon, Feb 26, 9:17 AM HST · 19576 days ago · 30 km deep · 9 km away
9. 1.910 km SSE of Volcano, HawaiiMon, Feb 26, 2:08 AM HST · 19576 days ago · 2 km deep · 21 km away
10. 2.5Island of Hawaii, HawaiiMon, Feb 26, 12:42 AM HST · 19576 days ago · 7 km deep · 5 km away
11. 2.014 km S of Volcano, HawaiiSun, Feb 25, 4:40 PM HST · 19576 days ago · 8 km deep · 22 km away
12. 3.48 km SSW of Pa‘auilo, HawaiiSun, Feb 25, 1:44 PM HST · 19576 days ago · 22 km deep · 61 km away
13. 2.313 km SSE of Volcano, HISat, Feb 24, 6:03 PM HST · 19577 days ago · 6 km deep · 24 km away
14. 2.118 km NNE of P?hala, HawaiiSat, Feb 24, 12:45 PM HST · 19578 days ago · 7 km deep · 7 km away
15. 2.31 km WNW of Volcano, HawaiiSat, Feb 24, 8:15 AM HST · 19578 days ago · 31 km deep · 15 km away
16. 2.58 km ENE of Kealakekua, HawaiiSat, Feb 24, 5:32 AM HST · 19578 days ago · 4 km deep · 50 km away
17. 2.427 km SSE of Waimea, HawaiiFri, Feb 23, 6:44 PM HST · 19578 days ago · 13 km deep · 45 km away
18. 2.63 km S of Pa‘auilo, HawaiiFri, Feb 23, 11:36 AM HST · 19579 days ago · 10 km deep · 66 km away
19. 3.810 km ESE of Waikoloa, HawaiiFri, Feb 23, 7:47 AM HST · 19579 days ago · 10 km deep · 62 km away
20. 2.013 km SSE of Volcano, HawaiiFri, Feb 23, 7:30 AM HST · 19579 days ago · 7 km deep · 22 km away

From the USGS Earthquake Hazards Program and its partner networks, event hv19730337. Read Fri, Oct 2, 2026, 11:06 AM UTC.