Earthquake Data & Seismic Risk
Public-data reference. for PlainQuake.
Aggregated USGS earthquake catalog (307K+ events 2005-2025): global M4+/US M2.5+ with country/state/year stats & magnitude breakdowns.
Explore 310,010 earthquakes worldwide (2005-2025). 14,334 significant events (M6+) across 215 countries — powered by USGS data.
Total Earthquakes (M4+)
310,010
2005-2025
Significant (M6+)
14,334
From 1900-present
Countries Affected
215
Strongest Recorded
M9.5
Recent Significant Earthquakes
View all M6+| Mag | Location | Depth | Date |
|---|---|---|---|
| 6.2 | 40 km W of Puerto Santa, Peru | 58.0 km | Dec 28, 2025 |
| 6.6 | 29 km ESE of Yilan, Taiwan | 63.0 km | Dec 27, 2025 |
| 6.0 | 2025 Taitung, Taiwan Earthquake | 8.0 km | Dec 24, 2025 |
| 6.5 | 45 km NNE of Goroka, Papua New Guinea | 107.0 km | Dec 22, 2025 |
| 6.7 | 117 km NE of Kuji, Japan | 19.0 km | Dec 12, 2025 |
| 6.6 | 129 km S of Honchō, Japan | 19.0 km | Dec 8, 2025 |
| 6.0 | 127 km S of Honchō, Japan | 22.8 km | Dec 8, 2025 |
| 7.6 | 2025 Aomori Prefecture, Japan Earthquake | 40.7 km | Dec 8, 2025 |
| 7.0 | 2025 Hubbard Glacier Earthquake | 10.3 km | Dec 6, 2025 |
| 6.0 | 12 km WNW of Susitna, Alaska | 69.4 km | Nov 27, 2025 |
| 6.4 | 54 km WNW of Sinabang, Indonesia | 17.0 km | Nov 27, 2025 |
| 6.0 | 129 km E of Yamada, Japan | 11.0 km | Nov 10, 2025 |
| 6.4 | 117 km E of Yamada, Japan | 10.0 km | Nov 9, 2025 |
| 6.8 | 122 km E of Yamada, Japan | 18.0 km | Nov 9, 2025 |
| 6.0 | 149 km SE of Petropavlovsk-Kamchatsky, Russia | 28.0 km | Nov 4, 2025 |
| 6.0 | 191 km WSW of Merizo Village, Guam | 65.0 km | Nov 4, 2025 |
| 6.1 | 142 km SE of Petropavlovsk-Kamchatsky, Russia | 29.0 km | Nov 3, 2025 |
| 6.2 | 30 km SE of Mazār-e Sharīf, Afghanistan | 28.0 km | Nov 2, 2025 |
| 6.4 | Banda Sea | 142.0 km | Oct 28, 2025 |
| 6.0 | 7 km SE of Sındırgı, Turkey | 8.0 km | Oct 27, 2025 |
Magnitude Distribution (2005-2025)
M4.0-4.9
270,385
87.22% of total
M5.0-5.9
36,469
11.76% of total
M6.0-6.9
2,841
0.92% of total
M7.0-7.9
292
0.09% of total
M8.0+
23
0.01% of total
Earthquakes by US State & Territory
Color encodes each state's M4+ earthquake count in the USGS Comprehensive Earthquake Catalog. Pacific states and territories near subduction zones dominate; the eastern US shows sparse but consequential activity. Select any state to open its full seismic profile.
USGS PGA Seismic Hazard Tiers
PGA hazard tiers (50-year design life) — United States — National Seismic Hazard Map 2023 (USGS NSHM)
Peak Ground Acceleration tiers used in the USGS National Seismic Hazard Map and ASCE 7-22 seismic design. Each tier maps to a FEMA Seismic Design Category (SDC) used in the International Building Code.
Annual Earthquake Activity
All yearsFrequently Asked Questions
What data does PlainQuake provide?
PlainQuake provides USGS earthquake data covering 307,000+ events worldwide (magnitude 4+) and in the U.S. (magnitude 2.5+) from 2005-2025.
What magnitude earthquakes are included?
PlainQuake includes M4.0+ earthquakes globally and M2.5+ earthquakes in the United States. Magnitude 2.5 is typically the smallest earthquake felt by people.
Where does the data come from?
All data comes from the USGS Comprehensive Earthquake Catalog (ComCat), the official source for earthquake information worldwide.
Earthquake Guides
How Earthquakes Are Measured
Moment magnitude, seismograph networks, depth classification, and how USGS locates seismic events.
Earthquake Risk in the US
Which US regions face the most seismic risk, major fault lines, and what USGS data reveals about frequency.
Reading Earthquake Data
How to interpret magnitude, depth, location, and yearly statistics — and what makes an earthquake truly dangerous.
Earthquake Preparedness Guide
Emergency supplies checklist, household plan, building safety, and what to do during and after an earthquake.
Most Seismically Active US Regions
US states ranked by earthquake frequency and magnitude — from Alaska's dominance to the New Madrid zone.
Related Guides
Editorial context for the plainquake dataset — methodology, comparisons, and deep dives into the underlying records.