All earthquakes
1.8
very light
EARTHQUAKE DETAILS

3 km North of Tonezza del Cimone

14 days ago · 11 Aug, 18:41

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

Stronger than 82% of Italian events in the past year

Where

3 km North of Tonezza del CimoneEarthquakes 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

12 events
Magnitude:lightweakmoderatestrong

The energy released

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

7.6kgof TNT equivalent
Less than the energy of a lightning bolt
M3
A magnitude 3 earthquake releases ×63 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.

  • Trento
    25 km from the epicentre
    first tremor in ~5 s
    main shaking in ~8 s
  • Vicenza
    40 km from the epicentre
    first tremor in ~7 s
    main shaking in ~12 s
  • Verona
    55 km from the epicentre
    first tremor in ~9 s
    main shaking in ~16 s
  • Bolzano
    68 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

11 km
medium depth
1.2 times the height of Mount Everest

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

in line with 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 (M2.0, 1 month ago) in the same area. Aftershocks are normal after an earthquake and tend to fade over time.

2.0
The mainshock
6 km East of Brentonico
1 month ago · 25 Jul, 12:33
Activity in the area right now (30 km radius)
0
last 24 hours
1
last 7 days
9
last 30 days
6 before5 after
nowthis quake
Strongest of the sequence2.0

How often does it happen here?

about every ~39 days

Within 50 km of this epicentre, a magnitude ≥ 2 earthquake has occurred on average this often: 110 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 · 45 km from here
XCompletely destructive: most buildings are destroyed.
18915.9
Valle d'Illasi earthquake
7 June 1891 · 38 km from here
IXDestructive: many buildings partly or fully collapse.
18365.5
Asolano earthquake
12 June 1836 · 40 km from here
VIIIRuinous: partial collapses in ordinary buildings, widespread heavy damage.
18825.1
Monte Baldo earthquake
18 September 1882 · 47 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 6 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 West of Vallarsa
21 km West · 12 km
13 days ago
12 Aug, 05:21
1.1
5 km North-West of Valli del Pasubio
15 km South-West · 12 km
12 days ago
13 Aug, 01:48
0.9
4 km West of Vallarsa
21 km West · 11 km
11 days ago
14 Aug, 02:44
0.9
4 km North of Ala
25 km West · 10 km
11 days ago
14 Aug, 12:03
1.1
4 km North-West of Valli del Pasubio
15 km South-West · 11 km
17 days ago
7 Aug, 20:46
1.4
6 km East of Vallarsa
15 km South-West · 11 km
17 days ago
7 Aug, 20:18
1.0
1 km North-West of Vallarsa
19 km West · 13 km
7 days ago
18 Aug, 19:21
0.8
2 km East of Fornace
28 km North · 10 km
26 days ago
30 Jul, 16:28
2.0
6 km East of Brentonico
25 km West · 15 km
1 month ago
25 Jul, 12:33
1.5
1 month ago
22 Jul, 13:48

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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