Temblor hoy, Últimos sismos registrados y cómo consultar el reporte oficial

Quick Answer

As of August 13, 2026, the most significant earthquake recorded in the past 24 hours was a magnitude 6.0 event in the South Atlantic Ocean near the South Sandwich Islands. Other notable tremors today include a 4.4 magnitude quake in Cuyutlán, Colima, Mexico, and a 4.3 magnitude event in Barishāl, Gilgit-Baltistan, Pakistan.

The Philippines experienced a 4.7 magnitude earthquake on August 12 near Basco in the Cagayan Valley region.

Key Facts

• A magnitude 6.0 earthquake struck the South Atlantic Ocean, approximately 191 km southwest of Bristol Island, South Georgia and the South Sandwich Islands, at 9:47 AM local time on August 12, 2026.
• The Philippines recorded a 4.7 magnitude earthquake near Basco, Cagayan Valley, with an epicenter 32.2 km from Basco on Batan Island at a depth of 10 km.
• Mexico experienced a 4.4 magnitude earthquake near Cuyutlán, Colima, at 05:02 UTC on August 13, at a depth of 59 km.
• Alaska reported a 3.2 magnitude earthquake on the Alaska Peninsula on August 12, at a shallow depth of 4 km.
• A 6.0 magnitude earthquake in the Rat Islands, Aleutian Islands, was recorded at 21:16 UTC on August 12, with a depth of 110 km.
• In the past 24 hours, monitoring networks detected 1,168 earthquakes worldwide, including 46 events at magnitude 2.5 or greater listed by USGS.
• The largest earthquake this week was a 7.4 magnitude event in San José del Palmar, Chocó, Colombia.
• 140 earthquakes of magnitude 1.5 or greater occurred in the past 24 hours globally.

What the Latest Seismic Data Shows

The global earthquake monitoring networks operated by USGS, VolcanoDiscovery, and regional seismological laboratories provide a continuous picture of tectonic activity. The data from August 12-13, 2026, reveals a typical distribution of seismic events across the planet's active fault lines and plate boundaries.

The South Sandwich Islands Event

The strongest tremor in the recent 24-hour window was the magnitude 6.0 earthquake in the South Atlantic Ocean. This event occurred near the South Sandwich Islands, a remote archipelago that sits along a highly active subduction zone where the South American Plate dives beneath the smaller Sandwich Plate.

The region is known for producing large earthquakes, though its remote location means there is rarely any threat to populated areas. The quake was recorded at a depth of 10 km, indicating a relatively shallow rupture.

Activity in the Pacific Ring of Fire

Several significant events were recorded across the Pacific Ring of Fire, the horseshoe-shaped zone of intense seismic activity that surrounds the Pacific Ocean. The Philippines, which sits along this ring, experienced a 4.7 magnitude earthquake near Basco in the Cagayan Valley region.

The shallow depth of 10 km placed the epicenter close to Batan Island, where residents would have felt noticeable shaking. In the Aleutian Islands of Alaska, a 6.0 magnitude earthquake struck the Rat Islands region at a depth of 110 km.

This deeper event is characteristic of the subduction zone that runs along the Aleutian Trench, where the Pacific Plate slides beneath the North American Plate. Earlier on the same day, a smaller 3.2 magnitude earthquake occurred on the Alaska Peninsula at a very shallow depth of just 4 km.

Tracking Smaller Events

While the headline numbers focus on earthquakes above magnitude 4.0, the vast majority of seismic activity falls below that threshold. The monitoring data shows that in the past 24 hours, 1,168 earthquakes were detected worldwide.

Of these, 415 were below magnitude 2.0, 368 were between magnitude 2.0 and 2.9, and 163 were between magnitude 3.0 and 3.9. This distribution is consistent with long-term patterns of seismic activity.

For context, the seven-day totals show 9,838 recorded earthquakes, while the 30-day total reaches 43,096. These numbers reflect the continuous nature of tectonic movement, most of which goes unnoticed by people.

How to Read the Official Earthquake Reports

Understanding official earthquake reports requires familiarity with the standardized data formats used by monitoring agencies. The USGS, which serves as the primary source for global earthquake information, presents data in a consistent format that includes location coordinates, depth, magnitude, and time in UTC.

Key Data Points in a Report

Every earthquake report contains several critical pieces of information. The magnitude figure, typically expressed using the moment magnitude scale for larger events, indicates the energy released by the quake.

Depth is measured in kilometers and represents the distance from the surface to the point where rupture began. Generally, shallower earthquakes cause more damage at the surface than deeper ones of similar magnitude.

Location coordinates are given in latitude and longitude, along with a descriptive reference to a nearby landmark or populated area. The time is always listed in UTC (Coordinated Universal Time) to provide consistency across different time zones.

Reports also indicate the distance from the epicenter to the nearest named location, helping readers understand proximity to populated areas.

Understanding the Magnitude Scale

The magnitude scale is logarithmic, meaning each whole number increase represents approximately 32 times more energy release. A magnitude 5.0 earthquake releases about 32 times more energy than a 4.0 quake, and roughly 1,000 times more than a 3.0 quake.

This exponential relationship explains why the difference between a 6.0 and a 7.0 earthquake is so dramatic in terms of destructive potential. The reference data shows that most recorded earthquakes fall below magnitude 3.0.

In the past 24 hours, only 46 earthquakes reached magnitude 2.5 or greater in the USGS listing, and just 3 events exceeded magnitude 5.0 globally. The single magnitude 6.0 event in the South Atlantic represents the upper end of the recent activity.

Why Depth Matters

The depth of an earthquake significantly influences its impact. Shallow earthquakes, typically defined as those occurring less than 70 km below the surface, tend to produce stronger shaking at the surface.

The 4.7 magnitude quake near Basco, Philippines, occurred at just 10 km depth, meaning its effects would have been amplified in the immediate epicentral area. Conversely, the 4.2 magnitude earthquake in Chuquitira, Tacna, Peru, occurred at 158 km depth.

Deeper earthquakes distribute their energy over a larger volume of rock, often resulting in less intense surface shaking despite the same magnitude. The 6.0 magnitude event in the Rat Islands at 110 km depth would have been felt across a wide area of the Aleutian chain, but with reduced intensity compared to a shallow event of equal magnitude.

Regional Seismic Patterns This Week

Examining the broader weekly picture reveals which regions are experiencing elevated seismic activity and helps contextualize the daily numbers.

The Colombia Earthquake and Its Aftermath

The most significant event in the past week was the magnitude 7.4 earthquake in San José del Palmar, Chocó, Colombia. According to news reports from the reference materials, this earthquake caused building collapses and resulted in at least 111 confirmed fatalities, with more than 160 people killed overall.

Search and rescue operations were reportedly underway in the aftermath. This event was the strongest earthquake recorded globally this week and this month.

The Colombia earthquake highlights the devastating potential of large magnitude events in populated regions. While the daily statistics may show hundreds of small earthquakes, it is these infrequent large events that cause the majority of earthquake-related casualties and property damage.

Recent Activity in Central America and the Caribbean

The reference data also notes that a 7.3 magnitude earthquake struck the Mexico-Guatemala border region approximately 25 days before the current date. This event was felt from Mexico City to El Salvador, demonstrating the regional reach of major seismic events.

The concentration of activity in Central America reflects the complex tectonic setting where the Cocos Plate subducts beneath the Caribbean Plate.

Seismic Monitoring in the United States

Within the United States, monitoring networks maintained by organizations like the Pacific Northwest Seismic Network (PNSN) and the Central United States Earthquake Consortium (CUSEC) track local activity with high sensitivity. The PNSN data shows numerous small events in the Pacific Northwest, with magnitudes ranging from below zero to 3.4.

These small events are part of the background seismicity that occurs continuously in the region. The CUSEC dashboard tracks earthquakes in the central United States over rolling 90-day periods.

This region, which includes states in the New Madrid seismic zone, experiences occasional moderate earthquakes that are of particular interest to emergency management officials. In Oklahoma, a 3.2 magnitude earthquake occurred 6 km east of Wardville on August 9, 2026.

This event is consistent with the pattern of induced seismicity that has been documented in the state in recent years.

Where to Find Real-Time Earthquake Information

Accessing reliable, current earthquake information requires knowing which sources provide authoritative data and how to use their tools effectively.

The USGS Earthquake Hazards Program

The USGS earthquake map is widely considered the gold standard for real-time seismic information. The agency's website provides an interactive map that displays recent earthquakes worldwide, with filters for magnitude thresholds, time windows, and geographic regions.

Users can view the past day, week, or month of activity and can search the catalog for historical events. The USGS also provides a "Did You Feel It?" reporting tool that allows citizens to submit their observations of shaking.

This citizen-science data helps seismologists assess the intensity of shaking in different areas, which is particularly valuable for events that may not have been precisely measured by instruments.

Regional Monitoring Networks

Regional networks provide more detailed information for specific areas. The Pacific Northwest Seismic Network publishes recent earthquake data with high precision for Washington, Oregon, and British Columbia.

The Nevada Seismological Laboratory tracks activity in the Great Basin region, including the Walker Lane seismic zone. The Center for Earthquake Research and Information (CERI) at the University of Memphis maintains monitoring for the central United States, while CUSEC provides a dashboard covering earthquakes in its member states.

These regional resources offer context that global maps may lack, including information about local fault systems and historical seismicity.

International Monitoring

VolcanoDiscovery and similar platforms compile global earthquake data in user-friendly formats. These services aggregate information from various national seismic networks and present it alongside volcanic activity updates.

For travelers and researchers, these platforms can be particularly useful for understanding the broader geological context of seismic events.

Understanding Alert Systems

Many countries operate earthquake early warning systems that can provide seconds to minutes of advance notice before strong shaking arrives. These systems work by detecting the initial, less destructive P-waves of an earthquake and issuing alerts before the more damaging S-waves arrive.

The effectiveness of such systems depends on the density of monitoring instruments and the speed of alert distribution. For the most current information, official sources like USGS should always take precedence over social media posts or unofficial reports.

Seismic data is continuously revised as more information becomes available, so checking back after major events may yield updated magnitude estimates or corrected locations.

Frequently Asked Questions

What was the strongest earthquake today?

The strongest earthquake recorded in the recent 24-hour period was a magnitude 6.0 event in the South Atlantic Ocean, about 191 km southwest of Bristol Island in the South Sandwich Islands. This occurred on August 12, 2026.

The largest earthquake this week was a 7.4 magnitude event in Colombia.

How many earthquakes happen in a typical day?

Globally, monitoring networks detect approximately 1,168 earthquakes in a 24-hour period. The vast majority are below magnitude 2.0 and are not felt by people.

Only about 46 earthquakes reach magnitude 2.5 or greater each day, and typically only a few exceed magnitude 5.0.

What does earthquake magnitude really mean?

Magnitude measures the energy released at the source of an earthquake using a logarithmic scale. Each increase of one unit represents roughly 32 times more energy release.

A magnitude 6.0 earthquake is about 1,000 times more powerful than a magnitude 4.0 earthquake, which explains why large events can cause such extensive damage.

How can I report an earthquake I felt?

The USGS maintains a "Did You Feel It?" reporting system on its website where anyone can submit observations of ground shaking. These citizen reports help seismologists map the intensity of shaking and can provide crucial data for events in areas without dense instrument coverage.

Are earthquakes becoming more frequent?

The available data does not indicate a significant change in global earthquake frequency. Monitoring networks detect more earthquakes today than in past decades primarily because the number of seismic instruments has increased dramatically, allowing detection of smaller events.

The distribution of large earthquakes varies naturally from year to year.

Reference Notes

Information in this article is based on publicly available sources. Some details may change over time.

Verify with official sources before acting.