Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 05-08-2020 and time 04:39:58 (Italy) in region 4 km NW Zocca (MO)

A magnitude ML 1.8 earthquake occured in region: 4 km NW Zocca (MO), on

  • 05-08-2020 02:39:58 (UTC)
  • 05-08-2020 04:39:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3770, 10.9650 at 26 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
Guiglia MO 6 3931 8650
Marano sul Panaro MO 9 5060 13710
Castel d'Aiano BO 11 1906 15616
Pavullo nel Frignano MO 11 17383 32999
Vignola MO 12 25353 58352
Montese MO 12 3353 61705
Savignano sul Panaro MO 13 9177 70882
Castelvetro di Modena MO 14 11185 82067
Serramazzoni MO 15 8282 90349
Vergato BO 16 7639 97988
Valsamoggia BO 17 30561 128549
Spilamberto MO 18 12621 141170
Maranello MO 18 17359 158529
Castelnuovo Rangone MO 19 14896 173425
Polinago MO 20 1672 175097
Marzabotto BO 20 6779 181876
Gaggio Montano BO 20 4878 186754

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km S of Modena (184973 inhabitants)
33 Km W of Bologna (386663 inhabitants)
44 Km SE of Reggio nell'Emilia (171345 inhabitants)
46 Km S of Carpi (70699 inhabitants)
49 Km N of Pistoia (90315 inhabitants)
56 Km N of Prato (191150 inhabitants)
60 Km W of Imola (69797 inhabitants)
69 Km SE of Parma (192836 inhabitants)
70 Km NE of Lucca (89046 inhabitants)
71 Km N of Scandicci (50609 inhabitants)
71 Km NW of Firenze (382808 inhabitants)
73 Km SW of Ferrara (133155 inhabitants)
74 Km W of Faenza (58541 inhabitants)
76 Km E of Massa (69479 inhabitants)
77 Km E of Carrara (63133 inhabitants)
80 Km NE of Viareggio (62467 inhabitants)
86 Km NE of Pisa (89158 inhabitants)
87 Km W of Forlì (117913 inhabitants)
95 Km E of La Spezia (93959 inhabitants)
98 Km W of Ravenna (159116 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 1.8 2020-08-05
02:39:58		 44.3772 10.9647 26 2020-11-19
12:36:57		 Bollettino Sismico Italiano INGV 81879191
Reviewed
Rev100 		ML 1.9 2020-08-05
02:39:57		 44.4653 10.8548 24 2020-08-05
02:49:43		 Sala Sismica INGV-Roma 81662251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-05 02:39:58 ± 0.29
Latitude 44.3772 ± 0.0180
Longitude 10.9647 ± 0.0164
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81879191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1685
Semi-minor axis of confidence ellipse (meter) 1337
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 146
Circular confidence region, given by single value of horizontal uncertainty (meter) 1690.0
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 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.65111
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 81662251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-05 02:49:43

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 81879191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-07 15:26:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BDI.HHZ. 2020-08-05T02:40:14.10 0.3 undecidable manual S 220 45.5211 113 0.2 71
GU.POPM.HHZ. 2020-08-05T02:40:13.20 0.6 undecidable manual S 204 40.3263 116 0.56 44
GU.GRAM.HHZ. 2020-08-05T02:40:11.44 0.6 undecidable manual P 280 72.2721 104 0.14 45
GU.GSCL.HHZ. 2020-08-05T02:40:10.36 0.6 undecidable manual S 264 30.0477 125 0.1 49
IV.FNVD.HHZ. 2020-08-05T02:40:09.23 0.3 undecidable manual S 152 26.3514 129 -0.25 73
MN.VLC.HHZ. 2020-08-05T02:40:09.06 0.3 undecidable manual P 242 51.9036 110 0.78 59
GU.SARM.EHN. 2020-08-05T02:40:07.89 0.3 undecidable manual P 245 49.617 111 -0.07 72
IV.BDI.HHZ. 2020-08-05T02:40:07.02 0.3 undecidable manual P 220 45.5211 113 -0.36 68
GU.POPM.HHZ. 2020-08-05T02:40:06.45 0.1 undecidable manual P 204 40.3263 116 -0.2 95
IV.ZCCA.HHZ. 2020-08-05T02:40:06.70 0.3 undecidable manual S 162 3.0969 172 0.42 72
IV.MTRZ.HHE. 2020-08-05T02:40:06.77 0.3 undecidable manual P 101 37.2294 119 0.56 64
GU.GSCL.HHZ. 2020-08-05T02:40:04.90 0.3 undecidable manual P 264 30.0477 125 -0.37 70
IV.FNVD.HHZ. 2020-08-05T02:40:04.15 0.3 undecidable manual P 152 26.3514 129 -0.67 65
IV.ZCCA.HHZ. 2020-08-05T02:40:02.67 0.1 positive manual P 162 3.0969 172 -0.3 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HHE. ML:1.5 0.000200444 0.3008 AML other m 2020-08-05T02:40:07.01
IV.ZCCA.HHN. ML:1.7 0.00033048805000000006 0.32 AML other m 2020-08-05T02:40:07.33
IV.ZCCA.HNE. ML:2.6 0.0025718095 0.68 AML other m 2020-08-05T02:40:08.17
IV.ZCCA.HNN. ML:2.7 0.0028226015000000003 0.4896 AML other m 2020-08-05T02:40:08.22
GU.GSCL.HHN. ML:1.2 0.00006283337 0.2992 AML other m 2020-08-05T02:40:13.09
GU.GSCL.HHE. ML:1.2 0.00006125539 0.3808 AML other m 2020-08-05T02:40:13.75
GU.POPM.HHN. ML:1.6 0.00012120049999999999 0.2208 AML other m 2020-08-05T02:40:14.21
GU.POPM.HHE. ML:1.8 0.00016496620000000002 0.3008 AML other m 2020-08-05T02:40:15.29
IV.BDI.HHE. ML:1.4 0.00006992923 0.16 AML other m 2020-08-05T02:40:15.83
IV.BDI.HHN. ML:1.6 0.00010005046000000001 0.4208 AML other m 2020-08-05T02:40:16.22
IV.BDI.HNN. ML:1.8 0.000165306645 0.4592 AML other m 2020-08-05T02:40:15.00
IV.FIR.HHE. ML:2.1 0.0001879566 0.08 AML other m 2020-08-05T02:40:26.69
IV.FIR.HNE. ML:2.0 0.0001706363 0.0896 AML other m 2020-08-05T02:40:26.70
IV.FIR.HHN. ML:2.4 0.00034615185 0.1008 AML other m 2020-08-05T02:40:27.61
IV.FIR.HNN. ML:2.3 0.0003323314 0.08 AML other m 2020-08-05T02:40:27.61
IV.BDI.HNE. ML:1.6 0.00009384142000000001 0.7808 AML other m 2020-08-05T02:40:29.13
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