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Costa Rica · Guanacaste

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

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

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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 M3.3.

Details

ID
c0ee199e6d862635b8d4cdd675df519394ea5a15
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

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 (26.1 km)
Regional average: 26.1 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 Activity reported
    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

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • La Fortuna Arenal AirportCosta Rica · FON · MRAN
    43.4 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-05

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Costa Rica

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 393 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

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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