The map shows quakes of M1.5 and up from the last 90 days, the 8 biggest on record, and always the very latest quake — even if it was smaller than M1.5. The list below can include smaller ones the map leaves out. Tap any dot for details.
In the last 30 days, 0 earthquakes of M1.5 or bigger were recorded within 100 km of Portlock. The biggest quake on record near Portlock — records go back to 1980 — was the M5.0 of Mar 05, 1981, 14:09 UTC: 16 km ENE of Kualapu‘u, Hawaii.
Latest earthquakes near Portlock
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M3.5 | 23 km WNW of Maunaloa, Hawaii | Dec 03, 2024, 01:53 PM | 8 km | 29 km ESE |
| M3.0 | 26 km ESE of East Honolulu, Hawaii | Sep 24, 2023, 12:53 AM | 8 km | 25 km ESE |
| M3.4 | 39 km NNW of Kualapu‘u, Hawaii | Jul 12, 2019, 07:21 AM | 13 km | 63 km ENE |
| M3.3 | 51 km N of Kualapu‘u, Hawaii | Feb 03, 2019, 03:09 AM | 30 km | 80 km ENE |
| M3.5 | 13 km S of East Honolulu, Hawaii | Jun 03, 2018, 11:29 PM | 32 km | 12 km S |
| M3.7 | 34 km NE of Marine Corps Base Hawaii - MCBH, Hawaii | Sep 15, 2017, 08:40 PM | 10 km | 47 km NNE |
| M4.2 | 54 km SW of Maunaloa, Hawaii | Aug 22, 2014, 02:37 AM | 6 km | 54 km SSE |
| M4.1 | 5 km ESE of Maunaloa, Hawaii | Jun 06, 2014, 04:42 PM | -0 km | 58 km ESE |
| M4.5 | 49 km N of Kualapu‘u, Hawaii | Jun 21, 2013, 12:04 AM | 35 km | 81 km ENE |
| M4.1 | 66 km N of Kualapu‘u, Hawaii | May 31, 2006, 10:36 PM | 31 km | 91 km NE |
Earthquakes per year near Portlock (M3.0 and up, within 100 km)
M3.0–3.9 M4.0+
Each bar is one year; taller means more quakes (M3.0 and up). The dark red part is the bigger ones (M4.0+), counted inside the number above each bar — not added on top. These may be felt, depending on how far away and how deep they are. 2026 is not a full year yet — it only counts up to today. Source: USGS Earthquake Catalog.
The 8 biggest earthquakes on record near Portlock (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M5.0 | 16 km ENE of Kualapu‘u, Hawaii | Mar 05, 1981, 14:09 UTC | 85 km |
| M4.8 | 31 km ENE of Ka‘a‘awa, Hawaii | Dec 05, 1989, 22:17 UTC | 50 km |
| M4.8 | 14 km NNW of ‘Ualapu‘e, Hawaii | Mar 06, 1981, 02:43 UTC | 85 km |
| M4.5 | 49 km N of Kualapu‘u, Hawaii | Jun 21, 2013, 10:04 UTC | 81 km |
| M4.2 | 83 km SSW of Ocean Pointe, Hawaii | Mar 22, 1985, 17:14 UTC | 94 km |
| M4.2 | 54 km SW of Maunaloa, Hawaii | Aug 22, 2014, 12:37 UTC | 54 km |
| M4.1 | 28 km ENE of Ka‘a‘awa, Hawaii | May 20, 2005, 15:52 UTC | 46 km |
| M4.1 | 5 km ESE of Maunaloa, Hawaii | Jun 07, 2014, 02:42 UTC | 58 km |
Nearby places
Mariner's Ridge, HI (2 km) · East Honolulu, HI (2 km) · Hawai‘i Kai, HI (3 km) · Honolulu, HI (16 km) · Pearl City, HI (31 km) · Waiau-Pacific Palisades, HI (29 km)
USGS data fetched Nov 03, 2026, 22:45 UTC · page built Nov 03, 2026, 22:45 UTC. How to read this page: recent-window counts cover M1.5+ events within 100 km; the 10-year layer is based on M3.0+ and the history layer on M4.0+ since 1980. Recording completeness varies by era and region — small quakes from early decades are under-recorded, so “no record” does not prove “never happened”. Depths are relative to sea level and can be slightly negative for shallow events in elevated terrain. Method: data & methodology.