All earthquakes
1.6
very light
EARTHQUAKE DETAILS

M1.6 earthquake · 3 km North-East of Conegliano (TV)

2 years ago · 19 Aug 2024, 00:15

A very light earthquake, probably not felt by people. At this depth the shaking is felt, but rarely causes damage.

Stronger than 74% of Italian events in the past year

Where

3 km North-East of ConeglianoEarthquakes in the province of TrevisoEarthquakes in Veneto

How far away could it be felt?

A quake this small is usually not felt by people: only seismographs record it.

Statistical estimate from the Italian intensity attenuation model (INGV): actual perception depends on geology, buildings and depth. Very shallow events can be felt locally even below the threshold.

Earthquake map

13 events
Magnitude:lightweakmoderatestrong

The energy released

How much energy this quake unleashed, translated into everyday comparisons.

3.8kgof TNT equivalent
Less than the energy of a lightning bolt
M3
A magnitude 3 earthquake releases ×126 its energy
M1this quakeM3

Each extra magnitude unit releases about 32 times more energy: an M5 is not "a bit stronger" than an M4 — it is a different league.

Energy estimated with the standard Gutenberg–Richter relation; an average lightning bolt ≈ 1 billion joules. Indicative values.

The race of the seismic waves

Two waves set off from the hypocentre: the faster P wave arrives first with a sharp jolt; the S wave carries the actual shaking.

P waves — the first sharp jolt (~6 km/s)S waves — the strongest shaking (~3.5 km/s)
t ≈ 20 s

Animation sped up ~4× compared to reality.

  • Pordenone
    25 km from the epicentre
    first tremor in ~5 s
    main shaking in ~8 s
  • Treviso
    29 km from the epicentre
    first tremor in ~6 s
    main shaking in ~9 s
  • Venezia
    50 km from the epicentre
    first tremor in ~9 s
    main shaking in ~15 s
  • Padova
    67 km from the epicentre
    first tremor in ~11 s
    main shaking in ~20 s

Theoretical times with average crustal speeds: real values vary with geology. The gap between P and S waves is what earthquake early-warning systems rely on.

How deep it was born

15 km
medium depth
1.7 times the height of Mount Everest

At this depth the shaking is felt, but rarely causes damage.

deeper than the area average (~9 km)

For the same magnitude, a shallow earthquake is felt much more than a deep one: the energy starts closer to the surface.

What kind of quake is this?

Foreshock

In hindsight it was a foreshock: 2 years ago the same area had a stronger quake (M2.0). This can only be said after the fact — it was not predictable beforehand.

2.0
The mainshock
4 km South-West of Belluno
2 years ago · 6 Sept 2024, 14:40
Activity in the area right now (30 km radius)
0
last 24 hours
1
last 7 days
1
last 30 days
5 before7 after
this quake
Strongest of the sequence2.0

How often does it happen here?

about every ~37 days

Within 50 km of this epicentre, a magnitude ≥ 2 earthquake has occurred on average this often: 115 events in the last 12 years of the INGV catalogue.

An average computed on the recent past: it tells how used this area is to shaking, not when the next quake will come — earthquakes cannot be predicted.

The great earthquakes in this area's history

Almost a thousand years of catalogues: the strongest documented events within ~50 km.

16956.4
Asolano earthquake
25 February 1695 · 33 km from here
XCompletely destructive: most buildings are destroyed.
18736.3
Alpago Cansiglio earthquake
29 June 1873 · 27 km from here
IX-XCompletely destructive: most buildings are destroyed.
19366.1
Alpago Cansiglio earthquake
18 October 1936 · 19 km from here
IXDestructive: many buildings partly or fully collapse.
17765.8
Prealpi Friulane earthquake
10 July 1776 · 45 km from here
VIII-IXDestructive: many buildings partly or fully collapse.

Source: Parametric Catalogue of Italian Earthquakes CPTI15 (INGV, CC BY 4.0).

The closest seismic structure

Montebelluna-Montereale

The epicentre sits above this source area: the deep structure where this area's earthquakes can originate.

estimated maximum magnitude 6.8between 1 and 9 km deep

Faults are mapped to build better and understand the territory: knowing them says nothing about when an earthquake will occur, which remains unpredictable. Source: DISS 3.3 (INGV, CC BY 4.0).

Other quakes in the area

1.0
2 km West of Limana
19 km North-West · 9 km
2 years ago
17 Aug 2024, 01:44
1.2
8 km North-West of Fregona
18 km North · 5 km
2 years ago
14 Aug 2024, 03:02
1.3
2 years ago
13 Aug 2024, 08:36
1.3
3 km South-West of Alpago
21 km North · 2 km
2 years ago
11 Aug 2024, 21:53
1.1
3 km South of Alpago
20 km North · 8 km
2 years ago
11 Aug 2024, 21:49
1.0
2 km North-West of Aviano
26 km North-East · 26 km
2 years ago
4 Sept 2024, 11:11
1.3
4 km South-West of Belluno
24 km North-West · 11 km
2 years ago
6 Sept 2024, 14:03
1.0
4 km South-West of Belluno
24 km North-West · 10 km
2 years ago
6 Sept 2024, 14:15
2.0
4 km South-West of Belluno
24 km North-West · 10 km
2 years ago
6 Sept 2024, 14:40
1.4
3 km South-West of Belluno
24 km North-West · 10 km
2 years ago
6 Sept 2024, 14:54

Data: INGV — National Institute of Geophysics and Volcanology (CC-BY 4.0)

Estimates computed by Meteare on INGV data (Gutenberg–Richter relation; Italian macroseismic intensity attenuation model).