QuakeScout
Magnitude3.8

Reviewed by USGSEl Salvador25y ago

M3.8 earthquake 4 km WNW of Conchagua, El Salvador

Thursday, March 8, 2001, 06:17:33 UTC · 13.317°N, 87.901°W

A magnitude 3.8 earthquake struck 4 km WNW of Conchagua, El Salvador on Thursday, March 8, 2001, 06:17:33 UTC, at a depth of 33.0 km (shallow).

Magnitude
3.8
Minor · mb
Depth
33 km
Shallow
Felt reports
0
Did You Feel It?
Est. shaking
—
No ShakeMap
PAGER alert
None
Not issued
Tsunami
No flag
USGS feed

Outlined circle: this earthquake

In context

How big was it, and why here?

Energy released

8 tons of TNT

That is about 1/1,992 of the Hiroshima bomb. A magnitude 5.0 releases about 63 times more energy.

Tectonic setting

81 km

from the nearest mapped plate boundary, between the Indian and Burma plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.

Depth: shallow

33 km

Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.

Did You Feel It?

Where it was felt

No “Did You Feel It?” reports have been published for this event yet. If you felt it, you can add your report on the USGS website.

I felt it — report to USGS ↗

USGS PAGER estimate

Who was exposed to shaking

USGS publishes PAGER impact estimates for significant earthquakes, usually within an hour. No PAGER estimate is available for this event.

After the main event

Aftershocks within 50 km

USGS has not published any M2.5+ earthquake within 50 km in the 30 days after this event.

Regional history

Past M5+ earthquakes within 300 km

USGS lists 412 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:

  1. 7.712 km NW of Chalatenango, El SalvadorSeptember 7, 1915 · 150 km NW of this epicenter
  2. 7.783 km SSW of Corinto, NicaraguaSeptember 2, 1992 · 185 km S of this epicenter
  3. 7.728 km SSW of Puerto El Triunfo, El SalvadorJanuary 13, 2001 · 87 km W of this epicenter
  4. 7.57 km N of Los Amates, GuatemalaFebruary 4, 1976 · 258 km NW of this epicenter
  5. 7.318 km SSW of La Libertad, El SalvadorJune 19, 1982 · 161 km W of this epicenter
  6. 7.27 km SW of El Viejo, NicaraguaMarch 28, 1921 · 108 km SE of this epicenter
  7. 7.2116 km SW of Corinto, NicaraguaJuly 1, 1907 · 184 km S of this epicenter
  8. 7.1113 km SSW of Puerto El Triunfo, El SalvadorFebruary 8, 1926 · 150 km SW of this epicenter

History · NOAA

Deadliest earthquakes in this area

NOAA’s significant-earthquake database lists 70 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 42,914 recorded deaths. The most severe:

  1. 1976M7.5

    Chimaltenango, Guatemala City

    4 Feb 1976 · 258 km away · intensity IX

    23,000 deaths$2.1 billion damagetsunami

  2. 1972M6.2

    Managua

    23 Dec 1972 · 220 km away

    10,000 deaths$3.0 billion damage

  3. 1931M5.6

    Managua

    31 Mar 1931 · 239 km away

    2,450 deaths$15 million damage

  4. 1986M5.4

    San Salvador

    10 Oct 1986 · 143 km away

    1,100 deaths$1.5 billion damage

  5. 1951M6.5

    Jucuapa

    6 May 1951 · 37 km away

    1,100 deaths$23 million damage

  6. 1854

    San Salvador

    14 Apr 1854 · 150 km away

    1,000 deathsExtreme damage ($25M+)

NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.

Nearby trackers

Closest city pages