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M3.0 Depth: 8.0 km

M3.0 Earthquake near Tierras Morenas, Guanacaste (Costa Rica)

UTC time: 2026-08-04 04:21:06 UTC Local time: —

About this earthquake

A magnitude M3.0 earthquake was recorded near Tierras Morenas, Guanacaste (Costa Rica) on August 4, 2026 at 04:21 UTC. The hypocenter lay relatively close to the surface at around 8 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. Costa Rica: 5 earthquakes were recorded in the past 24 hours, the strongest reaching M3.0.

Details

Magnitude
M3.0
Depth
8.0 km
UTC time
2026-08-04 04:21:06 UTC
Local time
—
Country
Costa Rica
State
Guanacaste
City
Tierras Morenas
County
Tilarán
Village
Tierras Morenas
Source
emsc
Coordinates
10.58000, -84.96000
Temperature
22.5°C

Map

Depth profile

Depth profile Depth: 8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8 km
Shallow
8 km
8 km — shallower than the regional average (27.4 km)
Regional average: 27.4 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Tenorio
    Distance: 12 km ·Stratovolcano(es) ·Elevation: 1'916 m ·Costa Rica
  • Miravalles
    Distance: 28 km ·Stratovolcano ·Elevation: 2'028 m ·Last eruption: 1946 ·Costa Rica
  • Arenal
    Distance: 31 km ·Stratovolcano ·Elevation: 1'670 m ·Last eruption: 2010 ·Costa Rica
  • Rincon de la Vieja
    Distance: 50 km ·Complex ·Elevation: 1'729 m ·Last eruption: 2024 ·Costa Rica
  • Orosi
    Distance: 72 km ·Stratovolcano(es) ·Elevation: 1'659 m ·Costa Rica
  • Platanar
    Distance: 72 km ·Stratovolcano(es) ·Elevation: 2'267 m ·Costa Rica

Historic earthquake map · Costa Rica

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Costa Rica

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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