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
135
vs previous 12 (140)
-4%
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-US6000C9KB2020-10-19 → 2020-10-22
    114 km sse of sand point, alaska
  2. USGS-US6000C9HG2020-10-19 → 2020-10-22
    2020 sand point, alaska earthquake
  3. USGS-US6000C8SB2020-10-12 → 2020-10-15
    107 km ssw of la esperanza (el zapotal), mexico
  4. USGS-US6000C7NE2020-10-12 → 2020-10-15
    85 km sw of la esperanza (el zapotal), mexico
  5. USGS-US6000C6RG2020-10-08 → 2020-10-11
    43 km ese of nikolski, alaska
  6. USGS-US6000C54X2020-10-03 → 2020-10-06
    193 km sse of katsuura, japan
  7. USGS-US6000C1TJ2020-09-27 → 2020-09-30
    129 km ssw of nikolski, alaska
  8. USGS-US7000BQG02020-09-20 → 2020-09-23
    Earthquake magnitude 5.5 (mww) in 2.586N 095.235W, depth 10 km at 200942Z sep 20
    Galapagos Islands, Ecuador Region
  9. USGS-US7000BM9M2020-09-12 → 2020-09-15
    58 km se of ?funato, japan
  10. USGS-US7000BI012020-09-04 → 2020-09-07
    11 km wsw of finca blanco, panama
  11. USGS-US7000BCBV2020-08-24 → 2020-08-27
    4 km ssw of jacó, costa rica
  12. USGS-US6000BFPW2020-08-16 → 2020-08-19
    241 km ese of atka, alaska
  13. USGS-US6000BDUV2020-08-13 → 2020-08-16
    156 km ese of akutan, alaska
  14. USGS-US6000B9CC2020-08-04 → 2020-08-07
    105 km s of champerico, guatemala
  15. USGS-US6000B6I42020-07-30 → 2020-08-02
    Earthquake magnitude 5.8 (mww) in 30.629N 141.772E, depth 14 km at 300035Z jul 20
    Izu Islands, Japan Region
  16. USGS-US6000B35C2020-07-24 → 2020-07-27
    26 km sse of crucecita, mexico
  17. USGS-US7000ASWR2020-07-22 → 2020-07-25
    122 km ese of sand point, alaska
  18. USGS-US7000APD02020-07-15 → 2020-07-18
    69 km wsw of río grande, panama
  19. USGS-US7000AIQF2020-07-06 → 2020-07-09
    Earthquake magnitude 5.5 (mww) in 21.033N 144.858E, depth 125 km at 061258Z jul 20
    Mariana Islands Region
  20. USGS-US7000AI7P2020-07-05 → 2020-07-08
    227 km s of sand point, alaska
  21. USGS-US7000AABT2020-06-24 → 2020-06-27
    36 km se of hasaki, japan
  22. USGS-US6000AHCR2020-06-23 → 2020-06-26
    91 km ne of yigo village, guam
  23. NAVAREA XII 276/202020-06-23 → 2020-06-24
    An earthquake occurred at 231529Z jun with a preliminary magnitude of 7.7, preliminary location 15-54N…
    Eastern North Pacific Coastal Areas
  24. USGS-US6000AH9T2020-06-23 → 2020-06-26
    9 km se of santa maría xadani, mexico
  25. USGS-US6000A2RT2020-05-30 → 2020-06-02
    69 km se of obihiro, japan
  26. USGS-US70009N5P2020-05-22 → 2020-05-25
    173 km ese of la playa, mexico
  27. USGS-US70009DUS2020-05-10 → 2020-05-13
    49 km e of ?arai, japan
  28. USGS-US70009ADL2020-05-05 → 2020-05-08
    78 km ssw of puerto san josé, guatemala
  29. USGS-US700099S82020-05-04 → 2020-05-07
    6 km se of hasaki, japan
  30. USGS-US7000903M2020-04-19 → 2020-04-22
    31 km se of ?funato, japan
  31. USGS-US70008NEL2020-04-04 → 2020-04-07
    280 km se of ust’-kamchatsk staryy, russia
  32. USGS-US70008H8N2020-03-27 → 2020-03-30
    126 km nnw of manokwari, indonesia
  33. HYDROPAC 1001/202020-03-25 → 2020-03-25
    An earthquake occurred at 250249Z mar with a preliminary magnitude of 7.8, preliminary location 49-00N…
    Western North Pacific · Kuril Islands
  34. USGS-US70008FI42020-03-25 → 2020-03-28
    221 km sse of severo-kuril’sk, russia
  35. USGS-US60008D3Z2020-03-10 → 2020-03-13
    214 km n of puerto ayora, ecuador
  36. USGS-NC733517102020-03-09 → 2020-03-12
    69KM w of petrolia, ca
  37. USGS-US600087LZ2020-03-02 → 2020-03-05
    239 km wsw of adak, alaska
  38. USGS-US70007TRB2020-02-20 → 2020-02-23
    153 km ene of petropavlovsk-kamchatsky, russia
  39. USGS-US60007MJ22020-02-02 → 2020-02-05
    104 km sw of brisas barra de suchiate, mexico
  40. USGS-US60007GRA2020-01-26 → 2020-01-29
    246 km wsw of adak, alaska
  41. USGS-US60007GCA2020-01-26 → 2020-01-29
    229 km wsw of adak, alaska
  42. USGS-US60007G8M2020-01-26 → 2020-01-29
    240 km wsw of adak, alaska
  43. USGS-US60007G6E2020-01-26 → 2020-01-29
    246 km wsw of adak, alaska
  44. USGS-US60007CRW2020-01-22 → 2020-01-25
    139 km se of atlasovo, russia
  45. USGS-US70006XJW2020-01-10 → 2020-01-13
    101 km sw of barra de navidad, mexico
  46. USGS-US70006UWQ2020-01-05 → 2020-01-08
    3 km w of reforma de pineda, mexico
  47. USGS-US70006U7M2020-01-03 → 2020-01-06
    7 km w of santa teresa, nicaragua
  48. USGS-US70006TTF2020-01-02 → 2020-01-05
    38 km ene of hasaki, japan
  49. USGS-US70006QT72019-12-25 → 2019-12-28
    203 km w of port mcneill, canada
  50. USGS-US70006Q962019-12-23 → 2019-12-26
    189 km w of port mcneill, canada

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.