Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 07-03-2021 and time 22:00:57 (UTC) in region 4 km SE Zocca (MO)

A magnitude ML 1.5 earthquake occured in region: 4 km SE Zocca (MO), on

  • 07-03-2021 22:00:57 (UTC)
  • 07-03-2021 23:00:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3220, 11.0400 at 21 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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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 4 4719 4719
Castel d'Aiano BO 5 1906 6625
Vergato BO 7 7639 14264
Montese MO 10 3353 17617
Grizzana Morandi BO 12 3916 21533
Marzabotto BO 13 6779 28312
Guiglia MO 14 3931 32243
Gaggio Montano BO 16 4878 37121
Marano sul Panaro MO 16 5060 42181
Pavullo nel Frignano MO 16 17383 59564
Camugnano BO 17 1885 61449
Castel di Casio BO 18 3448 64897
Savignano sul Panaro MO 18 9177 74074
Vignola MO 18 25353 99427
Sasso Marconi BO 18 14735 114162
Alto Reno Terme BO 19 6960 121122
Monzuno BO 19 6328 127450
San Benedetto Val di Sambro BO 20 4315 131765
Monte San Pietro BO 20 10982 142747

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SW of Bologna (386663 inhabitants)
37 Km S of Modena (184973 inhabitants)
44 Km N of Pistoia (90315 inhabitants)
49 Km N of Prato (191150 inhabitants)
53 Km S of Carpi (70699 inhabitants)
53 Km SE of Reggio nell'Emilia (171345 inhabitants)
54 Km W of Imola (69797 inhabitants)
64 Km N of Scandicci (50609 inhabitants)
64 Km N of Firenze (382808 inhabitants)
67 Km W of Faenza (58541 inhabitants)
68 Km NE of Lucca (89046 inhabitants)
73 Km SW of Ferrara (133155 inhabitants)
78 Km SE of Parma (192836 inhabitants)
78 Km E of Massa (69479 inhabitants)
80 Km E of Carrara (63133 inhabitants)
81 Km W of Forlì (117913 inhabitants)
81 Km NE of Viareggio (62467 inhabitants)
85 Km NE of Pisa (89158 inhabitants)
93 Km W of Ravenna (159116 inhabitants)
98 Km W of Cesena (96758 inhabitants)
99 Km E of La Spezia (93959 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.5 2021-03-07
22:00:57		 44.3223 11.0395 21 2021-07-12
16:55:04		 Bollettino Sismico Italiano INGV 88700101
Reviewed
Rev100 		ML 1.5 2021-03-07
22:00:57		 44.317 11.048 22 2021-03-07
23:05:26		 Sala Sismica INGV-Roma 87886271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-07 22:00:57 ± 0.14
Latitude 44.3223 ± 0.0081
Longitude 11.0395 ± 0.0075
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88700101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 912
Semi-minor axis of confidence ellipse (meter) 300
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.75273
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 19
Type of magnitude ML
Reference to an origin 88700101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-22 16:32:29

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 87886271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-07 23:05:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASQU.HHE. 2021-03-07T22:01:12.28 0.6 undecidable manual P 134 83.5497 98 0.26 46
IV.BDI.HHZ. 2021-03-07T22:01:12.90 0.6 undecidable manual S 231 45.5211 106 0.27 49
IV.PII.HHZ. 2021-03-07T22:01:11.53 0.6 undecidable manual P 212 78.2661 98 0.31 46
IV.VISG.HHZ. 2021-03-07T22:01:10.35 0.6 undecidable manual S 115 34.6431 113 0.47 47
GU.GSCL.HHN. 2021-03-07T22:01:10.34 0.6 undecidable manual S 275 35.9418 112 0.14 52
IV.MOCL.EHZ. 2021-03-07T22:01:10.54 0.6 undecidable manual S 162 36.9297 111 0.09 51
IV.RINC.HHN. 2021-03-07T22:01:10.06 0.6 undecidable manual P 137 66.1893 100 0.67 42
IV.SEI.HHZ. 2021-03-07T22:01:10.94 0.6 undecidable manual S 139 39.1275 110 -0.05 52
GU.POPM.HHE. 2021-03-07T22:01:10.97 0.6 undecidable manual S 216 38.1285 110 0.23 50
IV.RUFI.EHZ. 2021-03-07T22:01:09.52 0.6 undecidable manual P 145 65.49 100 0.24 47
IV.LMD.HHE. 2021-03-07T22:01:08.31 0.6 undecidable manual P 117 59.6958 102 -0.09 50
IV.BRIS.HHN. 2021-03-07T22:01:08.17 0.6 undecidable manual P 100 58.7967 102 -0.09 50
GU.SARM.EHN. 2021-03-07T22:01:07.81 0.6 undecidable manual P 253 53.0025 104 0.41 47
IV.RONT.HHZ. 2021-03-07T22:01:06.73 0.6 undecidable manual P 139 48.1185 105 0.06 51
IV.FNVD.HHZ. 2021-03-07T22:01:06.18 0.3 undecidable manual S 159 18.3705 132 0.01 81
GU.POPM.HHE. 2021-03-07T22:01:05.04 0.6 undecidable manual P 216 38.1285 110 -0.16 51
GU.GSCL.HHN. 2021-03-07T22:01:05.08 0.6 undecidable manual P 275 35.9418 112 0.19 51
IV.BDI.HHZ. 2021-03-07T22:01:05.99 0.6 undecidable manual P 231 45.5211 106 -0.3 48
IV.MTRZ.HHZ. 2021-03-07T22:01:04.67 0.3 undecidable manual P 92 30.6471 116 0.54 71
IV.VISG.HHZ. 2021-03-07T22:01:04.20 0.3 undecidable manual P 115 34.6431 113 -0.5 71
IV.ZCCA.HHZ. 2021-03-07T22:01:04.93 0.6 undecidable manual S 302 5.8941 162 0.6 48
IV.MPPT.EHZ. 2021-03-07T22:01:04.96 0.6 undecidable manual P 174 40.626 109 -0.61 45
IV.SEI.HHZ. 2021-03-07T22:01:04.95 0.6 undecidable manual P 139 39.1275 110 -0.39 48
IV.MOCL.EHZ. 2021-03-07T22:01:04.57 0.6 undecidable manual P 162 36.9297 111 -0.46 48
IV.ZCCA.HHZ. 2021-03-07T22:01:01.03 0.1 positive manual P 302 5.8941 162 -0.47 100
IV.FNVD.HHZ. 2021-03-07T22:01:01.99 0.3 undecidable manual P 159 18.3705 132 -0.57 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HNN. ML:1.6 0.00031910909999999996 0.3328 AML other m 2021-03-07T22:01:05.80
IV.ZCCA.HHN. ML:1.7 0.0003481128 0.3456 AML other m 2021-03-07T22:01:05.81
IV.ZCCA.HHE. ML:1.6 0.000322 0.28 AML other m 2021-03-07T22:01:06.24
IV.ZCCA.HNE. ML:1.6 0.000308808 0.2688 AML other m 2021-03-07T22:01:06.24
IV.FNVD.HHN. ML:2.2 0.000811 0.1 AML other m 2021-03-07T22:01:06.69
IV.FNVD.HHE. ML:2.3 0.0010745 0.2 AML other m 2021-03-07T22:01:06.64
IV.MOCL.EHN. ML:1.1 0.000046772034999999994 0.1152 AML other m 2021-03-07T22:01:10.76
IV.MOCL.EHE. ML:1.4 0.00008740000000000001 0.18 AML other m 2021-03-07T22:01:10.69
IV.VISG.HHE. ML:1.6 0.000134 1.7 AML other m 2021-03-07T22:01:12.89
IV.SEI.HHN. ML:1.6 0.0001145 0.46 AML other m 2021-03-07T22:01:12.56
IV.VISG.HHN. ML:1.5 0.000115 0.28 AML other m 2021-03-07T22:01:12.41
IV.BDI.HHN. ML:1.4 0.00007475 0.36 AML other m 2021-03-07T22:01:13.73
IV.MTRZ.HHN. ML:1.5 0.000116 0.38 AML other m 2021-03-07T22:01:13.78
IV.BDI.HHE. ML:1.4 0.00006644999999999999 0.26 AML other m 2021-03-07T22:01:14.04
IV.SEI.HHE. ML:1.6 0.00011649999999999999 0.34 AML other m 2021-03-07T22:01:14.44
IV.RONT.HHN. ML:1.4 0.00006394539 0.2176 AML other m 2021-03-07T22:01:16.66
IV.RONT.HHE. ML:1.4 0.000071685265 0.32 AML other m 2021-03-07T22:01:17.56
IV.PII.HHE. ML:1.3 0.000032334295 0.4608 AML other m 2021-03-07T22:01:25.52
IV.PII.HHN. ML:1.3 0.0000303 0.28 AML other m 2021-03-07T22:01:25.39
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