All earthquakes
1.1
very light
EARTHQUAKE DETAILS

2 km East of Valli del Pasubio

48 months ago · 15 Sept, 07:47

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

Stronger than 39% of Italian events in the past year

Where

2 km East of Valli del PasubioEarthquakes in the province of VicenzaEarthquakes 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

11 events
Magnitude:lightweakmoderatestrong

The energy released

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

0.7kgof TNT equivalent
Less than the energy of a lightning bolt
M3
A magnitude 3 earthquake releases ×708 its energy
M0this quakeM2

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 ≈ 18 s

Animation sped up ~3× compared to reality.

  • Vicenza
    33 km from the epicentre
    first tremor in ~6 s
    main shaking in ~10 s
  • Trento
    34 km from the epicentre
    first tremor in ~6 s
    main shaking in ~10 s
  • Verona
    40 km from the epicentre
    first tremor in ~7 s
    main shaking in ~12 s
  • Padova
    63 km from the epicentre
    first tremor in ~11 s
    main shaking in ~18 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

11 km
medium depth
1.3 times the height of Mount Everest

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

deeper than the area average (~6 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?

Aftershock

It is an aftershock: it follows a stronger quake (M2.1, 49 months ago) in the same area. Aftershocks are normal after an earthquake and tend to fade over time.

2.1
The mainshock
2 km North-East of Badia Calavena
49 months ago · 17 Aug, 21:59
Activity in the area right now (30 km radius)
0
last 24 hours
0
last 7 days
9
last 30 days
6 before4 after
this quake
Strongest of the sequence2.1

How often does it happen here?

about every ~35 days

Within 50 km of this epicentre, a magnitude ≥ 2 earthquake has occurred on average this often: 123 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.

18915.9
Valle d'Illasi earthquake
7 June 1891 · 23 km from here
IXDestructive: many buildings partly or fully collapse.
18365.5
Asolano earthquake
12 June 1836 · 45 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
19325.2
Garda orientale earthquake
19 February 1932 · 43 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
18825.1
Monte Baldo earthquake
18 September 1882 · 38 km from here
VIIVery strong: hard to stand; chimneys and roof tiles fall, serious damage to weaker buildings.

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

The closest seismic structure

Schio-Vicenza

The epicentre lies about 2 km from Schio-Vicenza, one of the seismic structures mapped by INGV geologists.

estimated maximum magnitude 7.3between 1 and 15 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

1.2
4 km South of Rovereto
18 km West · 14 km
48 months ago
13 Sept, 05:07
0.5
3 km East of Brentonico
22 km West · 18 km
48 months ago
17 Sept, 11:29
0.7
48 months ago
5 Sept, 04:18
0.9
4 km East of Avio
22 km West · 12 km
48 months ago
26 Sept, 11:59
0.7
1 km North-West of Pedemonte
18 km North · 18 km
47 months ago
4 Oct, 06:27
1.2
2 km North-East of Vallarsa
11 km West · 14 km
47 months ago
4 Oct, 18:29
1.5
49 months ago
24 Aug, 19:10
1.2
49 months ago
22 Aug, 19:47
1.6
4 km North-West of Ala
18 km West · 10 km
49 months ago
20 Aug, 09:49
2.1
2 km North-East of Badia Calavena
20 km South-West · 7 km
49 months ago
17 Aug, 21:59

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).

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