As of 26 September 2026, 0 earthquakes have been recorded in or near Guam in the past 24 hours, 3 in the last 7 days and 9 in the last 30 days. The strongest was a magnitude 5.3 event near Guam region at 7 km depth on 20 September 2026. Counts are compiled from USGS, EMSC and regional seismic networks and update automatically.
Guam sits beside the Mariana Trench, the deepest place in the ocean, and feels frequent offshore earthquakes. The map above shows live earthquakes and recent activity in Guam (Hagatna) - today, yesterday, this week and the last 30 days - including magnitude, depth and timing. Data is sourced from USGS, EMSC and regional seismic networks and updates automatically.
Whether you are checking for a quake that happened just now, looking for a USGS-style earthquake map for Guam, tracking tremors and seismic activity over the last 7 days, or watching for a big or major earthquake, this page stays current. For instant earthquake alerts in Guam - the moment a quake strikes near you - the free QuakeMate earthquake alert app sends real-time push notifications with custom magnitude and region rules.
Latest earthquakes in Guam
Show the full list of 9 recent earthquakes
- 4.2231 km SW of Merizo Village, Guam4 days ago · 21/09/2026, 17:33:36 · 10 km deep
- 4.993 km ESE of Yigo Village, Guam6 days ago · 20/09/2026, 06:47:56 · 10 km deep
- 5.3108 km ESE of Yigo Village, Guam6 days ago · 20/09/2026, 03:43:24 · 10 km deep
- 4.4146 km WSW of Merizo Village, Guam2 weeks ago · 11/09/2026, 18:59:48 · 200 km deep
- 4.254 km NNW of Asan-Maina Village, Guam2 weeks ago · 11/09/2026, 17:19:04 · 186 km deep
- 4.7168 km SSW of Merizo Village, Guam2 weeks ago · 10/09/2026, 13:35:05 · 10 km deep
- 5.1163 km SW of Merizo Village, Guam2 weeks ago · 10/09/2026, 13:28:15 · 10 km deep
- 4.246 km NNW of Dededo Village, Guam3 weeks ago · 04/09/2026, 21:56:09 · 144 km deep
- 4.0237 km WSW of Merizo Village, Guam3 weeks ago · 02/09/2026, 18:58:39 · 157 km deep
Did people in Guam feel recent earthquakes?
These recent earthquakes in Guam were felt by people nearby - see how many reported feeling each one.
Felt something we didn't list? Report it and read what neighbours felt in the QuakeMate app →
Watching Guam from abroad?
Many people reading this page are not in Guam - they are checking on family, friends or colleagues who are. Here is what the most significant recent earthquake actually means, in plain terms.
- How strong was it
- A magnitude 5.3 earthquake near 108 km ESE of Yigo Village, Guam on 20/09/2026, 03:43:24 - a moderate earthquake, widely felt and capable of light damage to vulnerable buildings near the epicentre.
- Was it widely felt
- No felt reports have been submitted for this earthquake yet. That is common for events offshore, at depth, or away from populated areas.
- What happens next
- 2 further earthquakes of magnitude 2.5 or above have been recorded in Guam since. Aftershocks typically continue for days to weeks and decay in frequency.
Earthquakes in Guam: frequently asked questions
Were there any earthquakes in Guam today?
No earthquakes have been recorded in or near Guam in the last 24 hours in the QuakeMate feed. Activity can begin at any time - the map above updates automatically and the app sends instant alerts.
How many earthquakes were there in Guam yesterday?
No earthquakes were recorded in or near Guam in the 24 hours before today (yesterday), based on USGS, EMSC and regional seismic networks.
How many earthquakes have there been in Guam this week (last 7 days)?
3 earthquakes have been recorded in or near Guam in the last 7 days, according to USGS, EMSC and regional seismic networks tracked by QuakeMate.
How many earthquakes have there been in Guam in the last 30 days?
9 earthquakes have been recorded in or near Guam in the last 30 days (the past month). The largest was magnitude 5.3.
Are there earthquakes in Guam?
Yes. Guam is seismically active - 9 earthquakes have been recorded in or near Guam in the last 30 days. Guam sits beside the Mariana Trench, the deepest place in the ocean, and feels frequent offshore earthquakes.
What was the most recent earthquake in Guam?
The most recent earthquake in Guam was a magnitude 4.2 event near 231 km SW of Merizo Village, Guam at a depth of 10 km.
What is the strongest recent earthquake in Guam?
The strongest earthquake in the recent Guam feed was magnitude 5.3, located near Guam region.
Is Guam in an earthquake zone?
Guam sits beside the Mariana Trench, the deepest place in the ocean, and feels frequent offshore earthquakes.
How many earthquakes does Guam get per year?
The exact yearly total depends on the magnitude threshold counted, but Guam's rate is reflected in its recent activity: 9 earthquakes in the last 30 days alone. Guam sits beside the Mariana Trench, the deepest place in the ocean, and feels frequent offshore earthquakes. QuakeMate tracks every event in real time so you can see the running tally.
Is there a tsunami warning for Guam?
Guam is landlocked or not directly exposed to ocean tsunamis, so its direct tsunami risk is very low. QuakeMate still flags tsunami-capable earthquakes worldwide; see quakemate.app/tsunamis for global tsunami activity.
Is there an earthquake alert app for Guam?
Yes. QuakeMate is a free iOS app that sends real-time earthquake alerts for Guam, with custom magnitude and region rules so you are notified the moment a quake strikes near you. It also offers a live map, "Did You Feel It" community reports and tsunami warnings. Download it at quakemate.app/download.
What is the best app to track earthquakes in Guam?
QuakeMate is a top-rated, free earthquake tracker for Guam: real-time data from USGS, EMSC and regional networks, instant push alerts, a live map, magnitude and depth for every event, and community felt reports. Available on iOS at quakemate.app/download.
Where can I see a USGS earthquake map for Guam?
QuakeMate plots USGS, EMSC and regional earthquake data for Guam on the interactive map above, updated automatically. Each event shows magnitude, depth, location and time, and links to a permalink page - a faster, mobile-friendly way to read the same USGS data.
Has there been a big earthquake in Guam recently?
The strongest recent earthquake in or near Guam was magnitude 5.3 near Guam region. That is a moderate earthquake that can be widely felt. See the live map and full list above for the latest activity.
More on how earthquakes work? Read the earthquake Q&A →
Get earthquake alerts for Guam
QuakeMate sends real-time alerts the moment an earthquake strikes near you - free on iOS, with community “Did You Feel It” reports.
Earthquakes in nearby countries
Earthquake data via the QuakeMate API (USGS, EMSC and regional agencies). Magnitudes and locations are preliminary and may be revised.