Earthquake with magnitude of ML 1.0 on date 22-01-2020 and time 11:00:07 (Italy) in region 1 km N Verghereto (FC)

A magnitude ML 1.0 earthquake occured in region: 1 km N Verghereto (FC), on

  • 22-01-2020 10:00:07 (UTC)
  • 22-01-2020 11:00:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8, 12.01 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Verghereto FC 1 1907 1907
Bagno di Romagna FC 7 6026 7933
Casteldelci RN 12 407 8340
Chiusi della Verna AR 13 2023 10363
Pieve Santo Stefano AR 15 3183 13546
Sarsina FC 17 3446 16992
Caprese Michelangelo AR 18 1426 18418
Sant'Agata Feltria RN 18 2151 20569
Badia Tedalda AR 18 1087 21656
Santa Sofia FC 18 4136 25792
Chitignano AR 19 899 26691
Bibbiena AR 19 12241 38932

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Arezzo (99543 inhabitants)
42 Km SW of Cesena (96758 inhabitants)
47 Km S of Forlì (117913 inhabitants)
53 Km SW of Rimini (147750 inhabitants)
55 Km S of Faenza (58541 inhabitants)
60 Km E of Firenze (382808 inhabitants)
66 Km SE of Imola (69797 inhabitants)
67 Km E of Scandicci (50609 inhabitants)
70 Km S of Ravenna (159116 inhabitants)
74 Km E of Prato (191150 inhabitants)
74 Km W of Pesaro (94582 inhabitants)
76 Km NE of Siena (53903 inhabitants)
81 Km W of Fano (60888 inhabitants)
83 Km NW of Perugia (166134 inhabitants)
89 Km E of Pistoia (90315 inhabitants)
94 Km SE of Bologna (386663 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.0 2020-01-22
10:00:07
43.8 12.01 11 2020-01-22
10:07:28
Sala Sismica INGV-Roma 75719551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-22 10:00:07 ± 0.03
Latitude 43.80 ± 0.00
Longitude 12.01 ± 0.00
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75719551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 280
Semi-minor axis of confidence ellipse (meter) 140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
Circular confidence region, given by single value of horizontal uncertainty (meter) 280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.07
Epicentral distance of station closest to the epicenter (degree) 0.15468
Epicentral distance of station farthest from the epicenter (degree) 0.22663
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 75719551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-22 10:07:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PARC.HHZ. 2020-01-22T10:00:16.40 0.1 undecidable manual S 133 0.2266 50 0.06 98
IV.CRE.HHZ. 2020-01-22T10:00:15.20 0.1 undecidable manual S 193 0.1871 50 0.01 99
IV.SFI.EHZ. 2020-01-22T10:00:14.30 0.1 undecidable manual S 312 0.1547 50 0.08 99
IV.ASQU.HHZ. 2020-01-22T10:00:14.30 0.1 undecidable manual S 268 0.1583 50 -0.01 100
IV.PARC.HHZ. 2020-01-22T10:00:12.37 0.1 undecidable manual P 133 0.2266 50 -0.09 97
IV.CRE.HHZ. 2020-01-22T10:00:11.83 0.1 positive manual P 193 0.1871 50 0.03 99
IV.SFI.EHZ. 2020-01-22T10:00:11.21 0.1 undecidable manual P 312 0.1547 50 -0.03 100
IV.ASQU.HHZ. 2020-01-22T10:00:11.23 0.1 undecidable manual P 268 0.1583 50 -0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:0 0.000122 0.26 AML other m 2020-01-22T10:00:14.46
IV.ASQU.HHN. ML:0 0.000138 0.14 AML other m 2020-01-22T10:00:14.57
IV.CRE.HHN. ML:0 0.00010625 0.34 AML other m 2020-01-22T10:00:15.60
IV.CRE.HHE. ML:0 4.0077835E-5 0.1792 AML other m 2020-01-22T10:00:15.55
IV.SFI.EHE. ML:0.7 4.4860975E-5 0.0768 AML other m 2020-01-22T10:00:14.52
IV.SFI.EHN. ML:0.6 3.3359865E-5 0.096 AML other m 2020-01-22T10:00:14.51
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download