Earthquake with magnitude of ML 1.8 on date 03-12-2021 and time 16:37:44 (UTC) in region 8 km NE Zocca (MO)

A magnitude ML 1.8 earthquake occured in region: 8 km NE Zocca (MO), on

  • 03-12-2021 16:37:44 (UTC)
  • 03-12-2021 17:37:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.385, 11.082 at 30 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
Zocca MO 8 4719 4719
Marzabotto BO 11 6779 11498
Guiglia MO 11 3931 15429
Savignano sul Panaro MO 11 9177 24606
Vergato BO 11 7639 32245
Vignola MO 12 25353 57598
Marano sul Panaro MO 12 5060 62658
Monte San Pietro BO 13 10982 73640
Castel d'Aiano BO 13 1906 75546
Sasso Marconi BO 13 14735 90281
Valsamoggia BO 13 30561 120842
Grizzana Morandi BO 15 3916 124758
Zola Predosa BO 16 18770 143528
Montese MO 17 3353 146881
Spilamberto MO 17 12621 159502
Castelvetro di Modena MO 17 11185 170687
Casalecchio di Reno BO 19 36327 207014
Monzuno BO 19 6328 213342

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Bologna (386663 inhabitants)
32 Km SE of Modena (184973 inhabitants)
47 Km SE of Carpi (70699 inhabitants)
50 Km SE of Reggio nell'Emilia (171345 inhabitants)
51 Km W of Imola (69797 inhabitants)
52 Km N of Pistoia (90315 inhabitants)
56 Km N of Prato (191150 inhabitants)
65 Km W of Faenza (58541 inhabitants)
66 Km SW of Ferrara (133155 inhabitants)
70 Km N of Firenze (382808 inhabitants)
70 Km N of Scandicci (50609 inhabitants)
76 Km SE of Parma (192836 inhabitants)
76 Km NE of Lucca (89046 inhabitants)
79 Km W of Forlì (117913 inhabitants)
84 Km E of Massa (69479 inhabitants)
86 Km E of Carrara (63133 inhabitants)
88 Km NE of Viareggio (62467 inhabitants)
89 Km W of Ravenna (159116 inhabitants)
92 Km NE of Pisa (89158 inhabitants)
95 Km SW of Rovigo (51867 inhabitants)
97 Km W of Cesena (96758 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.8 2021-12-03
16:37:44
44.385 11.0818 30 2021-12-03
16:49:19
Sala Sismica INGV-Roma 98097951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-03 16:37:44 ± 0.31
Latitude 44.3850 ± 0.0162
Longitude 11.0818 ± 0.0176
Depth (km) 30 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98097951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1702
Semi-minor axis of confidence ellipse (meter) 807
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 1700
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.47934
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 98097951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-03 16:49:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BDI.HHE. 2021-12-03T16:38:02.39 0.6 undecidable manual S 227 0.4739 114 0.38 47
GU.POPM.HHZ. 2021-12-03T16:38:00.38 0.6 undecidable manual S 215 0.4119 118 0.03 51
IV.FNVD.HHZ. 2021-12-03T16:37:55.49 0.6 undecidable manual S 172 0.2194 137 -0.26 50
IV.BDI.HHE. 2021-12-03T16:37:54.55 0.6 undecidable manual P 227 0.4739 114 -0.03 50
IV.ERBM.EHN. 2021-12-03T16:37:54.37 0.6 undecidable manual P 274 0.4793 114 -0.29 48
IV.MOCL.EHZ. 2021-12-03T16:37:53.18 0.6 undecidable manual P 169 0.3867 119 -0.06 51
IV.ZCCA.HHZ. 2021-12-03T16:37:53.93 0.6 undecidable manual S 246 0.0827 161 0.31 51
GU.GSCL.HHN. 2021-12-03T16:37:53.53 0.6 undecidable manual P 265 0.3543 122 0.76 41
IV.SEI.HHN. 2021-12-03T16:37:53.50 0.6 undecidable manual P 149 0.3858 119 0.28 48
GU.POPM.HHZ. 2021-12-03T16:37:53.91 0.6 undecidable manual P 215 0.4119 118 0.29 48
IV.MTRZ.HHZ. 2021-12-03T16:37:52.21 0.3 undecidable manual P 106 0.2554 132 0.8 62
IV.VISG.HHZ. 2021-12-03T16:37:52.05 0.3 undecidable manual P 128 0.3193 125 -0.21 75
IV.RAVA.EHE. 2021-12-03T16:37:52.82 0.6 undecidable manual P 4 0.3714 121 -0.2 50
IV.FNVD.HHZ. 2021-12-03T16:37:50.49 0.1 negative manual P 172 0.2194 137 -0.47 96
IV.ZCCA.HHZ. 2021-12-03T16:37:49.32 0.1 positive manual P 246 0.0827 161 -0.42 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HHN. ML:1.9 0.000415 1.72 AML other m 2021-12-03T16:37:54.01
IV.ZCCA.HNN. ML:1.9 0.0004155 1.72 AML other m 2021-12-03T16:37:54.01
IV.ZCCA.HHE. ML:2 0.00045 0.22 AML other m 2021-12-03T16:37:54.09
IV.ZCCA.HNE. ML:2 0.00045 0.22 AML other m 2021-12-03T16:37:54.09
IV.FNVD.HHE. ML:1.8 0.0002370003 0.1536 AML other m 2021-12-03T16:37:55.94
IV.FNVD.HHN. ML:1.9 0.0002865 1.36 AML other m 2021-12-03T16:37:56.12
GU.POPM.HHN. ML:1.7 0.00011425 0.16 AML other m 2021-12-03T16:38:00.99
GU.POPM.HHE. ML:1.6 9.232023E-5 0.1664 AML other m 2021-12-03T16:38:01.73
IV.VISG.HHE. ML:0.9 2.3727201E-5 0.7424 AML other m 2021-12-03T16:38:01.12
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