Earthquake with magnitude of ML 1.8 on date 16-10-2021 and time 04:56:08 (Italy) in region 5 km NE Vernio (PO)

A magnitude ML 1.8 earthquake occured in region: 5 km NE Vernio (PO), on

  • 16-10-2021 02:56:08 (UTC)
  • 16-10-2021 04:56:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.096, 11.179 at 10 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
Vernio PO 5 6060 6060
Castiglione dei Pepoli BO 6 5648 11708
Cantagallo PO 9 3105 14813
Camugnano BO 11 1885 16698
Barberino di Mugello FI 12 10836 27534
Castel di Casio BO 14 3448 30982
San Benedetto Val di Sambro BO 14 4315 35297
Sambuca Pistoiese PT 14 1626 36923
Vaiano PO 15 9895 46818
Firenzuola FI 16 4726 51544
Alto Reno Terme BO 17 6960 58504
Monghidoro BO 18 3749 62253
Grizzana Morandi BO 18 3916 66169
Scarperia e San Piero FI 19 12217 78386

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km N of Prato (191150 inhabitants)
28 Km NE of Pistoia (90315 inhabitants)
37 Km N of Firenze (382808 inhabitants)
37 Km N of Scandicci (50609 inhabitants)
46 Km S of Bologna (386663 inhabitants)
52 Km SW of Imola (69797 inhabitants)
60 Km W of Faenza (58541 inhabitants)
61 Km E of Lucca (89046 inhabitants)
65 Km SE of Modena (184973 inhabitants)
70 Km W of Forlì (117913 inhabitants)
75 Km NE of Pisa (89158 inhabitants)
79 Km E of Viareggio (62467 inhabitants)
80 Km SE of Reggio nell'Emilia (171345 inhabitants)
80 Km SE of Carpi (70699 inhabitants)
83 Km E of Massa (69479 inhabitants)
85 Km W of Cesena (96758 inhabitants)
86 Km E of Carrara (63133 inhabitants)
87 Km N of Siena (53903 inhabitants)
89 Km W of Ravenna (159116 inhabitants)
90 Km SW of Ferrara (133155 inhabitants)
90 Km NW of Arezzo (99543 inhabitants)
92 Km NE of Livorno (159219 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Reviewed
Rev100
ML 1.8 2021-10-16
02:56:08
44.0958 11.179 10 2021-10-16
03:03:41
Sala Sismica INGV-Roma 96632981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-16 02:56:08 ± 0.06
Latitude 44.0958 ± 0.0045
Longitude 11.1790 ± 0.0063
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96632981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 466
Semi-minor axis of confidence ellipse (meter) 419
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 470
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.73924
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 96632981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-16 03:03:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2021-10-16T02:56:27.82 3.0 undecidable manual P 0
GU.EQUI.HHZ. 2021-10-16T02:56:23.08 0.6 undecidable manual P 276 0.7392 50 0 44
IV.CSNT.HHZ. 2021-10-16T02:56:21.47 0.3 undecidable manual P 173 0.6277 50 0.3 64
IV.PII.HHZ. 2021-10-16T02:56:20.48 0.3 undecidable manual P 232 0.6007 50 -0.24 65
GU.POPM.HHZ. 2021-10-16T02:56:20.34 0.3 undecidable manual S 261 0.3076 50 -0.35 67
IV.OSSC.HHZ. 2021-10-16T02:56:20.70 0.3 undecidable manual P 175 0.5738 50 0.44 62
GU.MAIM.HHZ. 2021-10-16T02:56:19.76 0.6 undecidable manual P 250 0.527 50 0.31 43
IV.SFI.EHZ. 2021-10-16T02:56:19.20 0.1 undecidable manual P 111 0.5171 50 -0.08 91
GU.GSCL.HHZ. 2021-10-16T02:56:19.26 0.3 undecidable manual P 301 0.4937 50 0.37 64
IV.BRIS.HHZ. 2021-10-16T02:56:18.44 0.3 undecidable manual P 73 0.4407 50 0.47 64
GU.CARD.HHZ. 2021-10-16T02:56:18.72 0.1 undecidable manual P 262 0.5054 50 -0.36 86
IV.BDI.HHZ. 2021-10-16T02:56:17.32 0.1 undecidable manual P 266 0.42 50 -0.3 88
IV.VISG.HHZ. 2021-10-16T02:56:17.39 0.3 undecidable manual S 63 0.205 114 -0.13 72
IV.ZCCA.HHZ. 2021-10-16T02:56:16.36 0.3 undecidable manual P 330 0.2932 50 0.91 55
IV.RUFI.EHZ. 2021-10-16T02:56:16.27 0.1 undecidable manual P 137 0.3507 50 -0.17 92
IV.MPPT.EHZ. 2021-10-16T02:56:15.67 0.3 undecidable manual S 205 0.152 121 -0.02 74
IV.CRMI.HHZ. 2021-10-16T02:56:15.97 0.1 undecidable manual P 206 0.3327 50 -0.16 93
GU.POPM.HHZ. 2021-10-16T02:56:15.57 0.1 undecidable manual P 261 0.3076 50 -0.12 94
IV.SEI.HHZ. 2021-10-16T02:56:14.97 0.3 undecidable manual S 108 0.1358 124 -0.17 72
IV.FNVD.HHZ. 2021-10-16T02:56:13.55 0.1 undecidable manual S 331 0.0827 138 -0.03 100
IV.MOCL.EHZ. 2021-10-16T02:56:13.99 0.1 undecidable manual S 179 0.0908 135 0.19 97
IV.VISG.HHZ. 2021-10-16T02:56:13.55 0.1 undecidable manual P 63 0.205 114 -0.32 92
IV.SEI.HHZ. 2021-10-16T02:56:12.36 0.1 undecidable manual P 108 0.1358 124 -0.14 97
IV.MPPT.EHZ. 2021-10-16T02:56:12.92 0.1 undecidable manual P 205 0.152 121 0.11 97
IV.FNVD.HHZ. 2021-10-16T02:56:11.64 0.1 undecidable manual P 331 0.0827 138 0.05 100
IV.MOCL.EHZ. 2021-10-16T02:56:11.90 0.1 undecidable manual P 179 0.0908 135 0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FNVD.HHN. ML:2.6 0.004915 1.58 AML other m 2021-10-16T02:56:14.06
IV.MOCL.EHN. ML:2.7 0.006805 0.26 AML other m 2021-10-16T02:56:14.20
IV.MOCL.EHE. ML:2.4 0.003155 0.18 AML other m 2021-10-16T02:56:14.12
IV.FNVD.HHE. ML:2.3 0.002635 0.2 AML other m 2021-10-16T02:56:14.33
IV.MPPT.EHN. ML:2.1 0.0010735 0.26 AML other m 2021-10-16T02:56:16.13
IV.SEI.HHE. ML:2.5 0.003165 0.32 AML other m 2021-10-16T02:56:16.30
IV.SEI.HHN. ML:2.6 0.00423 0.4 AML other m 2021-10-16T02:56:16.12
IV.MPPT.EHE. ML:2.1 0.001025 0.74 AML other m 2021-10-16T02:56:16.22
IV.VISG.HHE. ML:1.6 0.0002595 0.44 AML other m 2021-10-16T02:56:17.62
IV.VISG.HHN. ML:1.7 0.0003245 0.58 AML other m 2021-10-16T02:56:18.34
GU.POPM.HHE. ML:2 0.0004545 0.46 AML other m 2021-10-16T02:56:20.52
GU.POPM.HHN. ML:2.2 0.000663 0.14 AML other m 2021-10-16T02:56:21.14
IV.CRMI.HHE. ML:1.4 9.705E-5 1 AML other m 2021-10-16T02:56:22.74
IV.BDI.HHN. ML:1.9 0.0002105 0.68 AML other m 2021-10-16T02:56:24.66
IV.BDI.HHE. ML:2 0.000287 0.68 AML other m 2021-10-16T02:56:24.86
IV.CRMI.HHN. ML:1.5 0.000125992 1.0592 AML other m 2021-10-16T02:56:21.81
IV.BDI.HNN. ML:1.9 0.0002445 1.08 AML other m 2021-10-16T02:56:26.59
GU.CARD.HHN. ML:2 0.0002255 0.36 AML other m 2021-10-16T02:56:26.68
IV.SFI.EHE. ML:1.7 0.00011125 0.78 AML other m 2021-10-16T02:56:27.60
GU.GSCL.HHE. ML:1.8 0.0001474 0.24 AML other m 2021-10-16T02:56:27.77
IV.SFI.EHN. ML:1.7 0.000111 1.08 AML other m 2021-10-16T02:56:27.86
GU.GSCL.HHN. ML:1.8 0.0001395 0.24 AML other m 2021-10-16T02:56:27.90
IV.BDI.HNE. ML:1.9 0.00022242375 1.0304 AML other m 2021-10-16T02:56:25.38
GU.CARD.HHE. ML:1.8 0.0001616445 0.7184 AML other m 2021-10-16T02:56:27.06
IV.CSNT.HHE. ML:1.7 8.815E-5 1.36 AML other m 2021-10-16T02:56:31.95
IV.OSSC.HHE. ML:1.8 0.0001105 1.3 AML other m 2021-10-16T02:56:31.96
IV.PII.HHN. ML:2.2 0.000304 0.24 AML other m 2021-10-16T02:56:31.61
IV.OSSC.HHN. ML:1.7 0.00010075 0.5 AML other m 2021-10-16T02:56:32.42
IV.PII.HHE. ML:2.1 0.0002395 0.76 AML other m 2021-10-16T02:56:33.59
IV.CSNT.HHN. ML:1.7 8.56E-5 0.34 AML other m 2021-10-16T02:56:33.76
GU.EQUI.HHN. ML:1.6 4.96E-5 1.08 AML other m 2021-10-16T02:56:36.25
GU.EQUI.HHE. ML:1.5 4.445E-5 0.52 AML other m 2021-10-16T02:56:40.57
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download