Earthquake & tsunami bulletins in the North Pacific Ocean

Undersea earthquakes of magnitude 5.5 and above (USGS) and the tsunami bulletins NAVAREA coordinators relay.

in force
2
last 12 months
134
vs previous 12 (141)
-5%
since 1997
2,413

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 2

  1. USGS-US7000TDVTin force2026-09-03
    Earthquake magnitude 6.3, 84 km SSW of Nikolski, Alaska, depth 35 km at 03:11 UTC Sep 26. Tsunami message issued; follow tsunami warning centres.
  2. USGS-US7000TDMPin force2026-09-02
    An earthquake of magnitude 5.6 struck 71 km WSW of Puerto Madero, Mexico, at depth 10 km on September 26.

Longest in force

  1. USGS-US7000TDMPin force2026-09-02 · 1 d
    An earthquake of magnitude 5.6 struck 71 km WSW of Puerto Madero, Mexico, at depth 10 km on September 26.
  2. USGS-US7000TDVTin force2026-09-03 · 0 d
    Earthquake magnitude 6.3, 84 km SSW of Nikolski, Alaska, depth 35 km at 03:11 UTC Sep 26. Tsunami message issued; follow tsunami warning centres.

By year

97
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the North Pacific Ocean

Archive · 2,411 cancelled

  1. USGS-USP000JUCG2012-10-24 → 2012-10-27
    Earthquake magnitude 6.5 (mww) in 10.086N 085.298W, depth 17 km at 240045Z oct 12
    Costa Rica
  2. USGS-USP000JU1Y2012-10-16 → 2012-10-19
    119 km s of severo-kuril’sk, russia
  3. USGS-USP000JU152012-10-15 → 2012-10-18
    5 km ese of la gomera, guatemala
  4. USGS-USP000JU032012-10-15 → 2012-10-18
    132 km sse of vilyuchinsk, russia
  5. USGS-USP000JTZ62012-10-14 → 2012-10-17
    5 km se of tinajas 1RA
  6. USGS-USP000JTZ02012-10-14 → 2012-10-17
    290 km ssw of severo-kuril’sk, russia
  7. USGS-USP000JTM02012-10-05 → 2012-10-08
    123 km sw of puerto san josé, guatemala
  8. USGS-USP000JTC62012-10-01 → 2012-10-04
    100 km e of miyako, japan
  9. USGS-USP000JT7T2012-09-29 → 2012-10-02
    3 km ssw of santo domingo armenta, mexico
  10. USGS-USP000JS5K2012-09-11 → 2012-09-14
    Earthquake magnitude 5.9 (mww) in 11.838N 143.218E, depth 8 km at 111636Z sep 12
    South of the Mariana Islands
  11. USGS-USP000JS4E2012-09-11 → 2012-09-14
    253 km e of kuril’sk, russia
  12. USGS-USP000JS1A2012-09-09 → 2012-09-12
    161 km s of severo-kuril’sk, russia
  13. USGS-USP000JS0M2012-09-08 → 2012-09-11
    10 km ene of hojancha, costa rica
  14. USGS-USP000JRZA2012-09-08 → 2012-09-11
    Earthquake magnitude 5.7 (mwb) in 21.527N 145.923E, depth 5 km at 080654Z sep 12
    Mariana Islands Region
  15. NAVAREA XII 240/122012-09-05 → 2012-09-05
    Tsunami warning
    Eastern North Pacific · Costa Rica-west Coast · Panama-west Coast · Nicaragua-west Coast
  16. HYDROPAC 2541/122012-09-05 → 2012-09-05
    Tsunami warning
    Eastern North Pacific · Costa Rica-west Coast · Panama-west Coast · Nicaragua-west Coast
  17. USGS-USP000JRSW2012-09-05 → 2012-09-08
    11 km ene of hojancha, costa rica
  18. USGS-USP000JR292012-08-29 → 2012-09-01
    44 km e of ishinomaki, japan
  19. USGS-USP000JQZ02012-08-28 → 2012-08-31
    Earthquake magnitude 5.5 (mww) in 12.458N 088.654W, depth 35 km at 280608Z aug 12
    Off the Coast of Central America
  20. NAVAREA XII 233/122012-08-27 → 2012-08-27
    Tsunami warning
    Eastern North Pacific · El Salvador-south Coast · Nicaragua-west Coast
  21. USGS-USP000JQW32012-08-27 → 2012-08-30
    109 km s of puerto el triunfo, el salvador
  22. USGS-USP000JQVM2012-08-27 → 2012-08-30
    126 km s of puerto el triunfo, el salvador
  23. USGS-USP000JQQJ2012-08-25 → 2012-08-28
    45 km ene of shizunai-furukawach?, japan
  24. USGS-USP000JQGE2012-08-19 → 2012-08-22
    251 km sw of tofino, canada
  25. USGS-USP000JQEE2012-08-17 → 2012-08-20
    Earthquake magnitude 5.5 (mwc) in 8.348N 103.003W, depth 10 km at 172127Z aug 12
    Northern East Pacific Rise
  26. USGS-USP000JQC72012-08-15 → 2012-08-18
    39 km sse of la libertad, el salvador
  27. USGS-USP000JQ4R2012-08-10 → 2012-08-13
    102 km ese of nikolski, alaska
  28. USGS-USP000JQ2Q2012-08-09 → 2012-08-12
    Earthquake magnitude 5.6 (mww) in 19.946N 109.332W, depth 10 km at 090234Z aug 12
    Revilla Gigedo Islands Region
  29. USGS-USP000JPM22012-07-29 → 2012-08-01
    36 km ssw of ocós, guatemala
  30. USGS-USP000JP7B2012-07-20 → 2012-07-23
    146 km s of severo-kuril’sk, russia
  31. USGS-USP000JP792012-07-20 → 2012-07-23
    141 km s of severo-kuril’sk, russia
  32. USGS-USP000JP262012-07-16 → 2012-07-19
    65 km sse of klyuchi, russia
  33. USGS-USP000JNXE2012-07-12 → 2012-07-15
    297 km e of kuril’sk, russia
  34. USGS-USP000JNV42012-07-11 → 2012-07-14
    278 km e of kuril’sk, russia
  35. USGS-USP000JNRW2012-07-08 → 2012-07-11
    268 km e of kuril’sk, russia
  36. USGS-USP000JN9S2012-06-27 → 2012-06-30
    5 km e of san francisco menéndez, el salvador
  37. USGS-USP000JMWC2012-06-17 → 2012-06-20
    19 km sse of ?funato, japan
  38. USGS-USP000JMCV2012-06-05 → 2012-06-08
    75 km ese of ?hara, japan
  39. USGS-USP000JMA52012-06-04 → 2012-06-07
    278 km sw of arenas, panama
  40. USGS-USP000JMA42012-06-04 → 2012-06-07
    Earthquake magnitude 6.3 (mww) in 5.305N 082.629W, depth 7 km at 040045Z jun 12
    South of Panama
  41. USGS-USP000JKU02012-05-23 → 2012-05-26
    72 km e of mutsu, japan
  42. USGS-USP000JKNX2012-05-20 → 2012-05-23
    105 km e of miyako, japan
  43. USGS-USP000JKNW2012-05-20 → 2012-05-23
    111 km e of yamada, japan
  44. USGS-USP000JKMK2012-05-19 → 2012-05-22
    Earthquake magnitude 5.9 (mwb) in 39.665N 143.311E, depth 10 km at 191905Z may 12
    Off the East Coast of Honshu, Japan
  45. USGS-USP000JJVZ2012-05-01 → 2012-05-04
    63 km sw of puerto madero, mexico
  46. USGS-USP000JJV82012-05-01 → 2012-05-04
    176 km se of la playa, mexico
  47. USGS-USP000JJSH2012-04-29 → 2012-05-02
    13 km ne of miyako, japan
  48. USGS-USP000JJS62012-04-29 → 2012-05-02
    5 km nnw of t?gane, japan
  49. USGS-USP000JJHZ2012-04-24 → 2012-04-27
    5 km ene of narut?, japan
  50. USGS-USP000JJG22012-04-23 → 2012-04-26
    272 km ssw of severo-kuril’sk, russia

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.