Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 04-07-2023 and time 11:21:47 (Italy) in region 3 km W Castellarano (RE)

A magnitude ML 2.0 earthquake occured in region: 3 km W Castellarano (RE), on

  • 04-07-2023 09:21:47 (UTC)
  • 04-07-2023 11:21:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5220, 10.7000 at 22 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.

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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
Castellarano RE 3 15232 15232
Viano RE 7 3374 18606
Sassuolo MO 7 40853 59459
Casalgrande RE 8 19310 78769
Baiso RE 8 3315 82084
Scandiano RE 9 25483 107567
Fiorano Modenese MO 9 17160 124727
Prignano sulla Secchia MO 10 3747 128474
Formigine MO 13 34323 162797
Serramazzoni MO 13 8282 171079
Albinea RE 13 8860 179939
Maranello MO 13 17359 197298
Vezzano sul Crostolo RE 15 4259 201557
Casina RE 16 4504 206061
Carpineti RE 16 4064 210125
Rubiera RE 16 14864 224989
Montefiorino MO 19 2203 227192
Castelnuovo Rangone MO 19 14896 242088
Castelvetro di Modena MO 20 11185 253273
Toano RE 20 4463 257736
Polinago MO 20 1672 259408

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km S of Reggio nell'Emilia (171345 inhabitants)
23 Km SW of Modena (184973 inhabitants)
33 Km SW of Carpi (70699 inhabitants)
43 Km SE of Parma (192836 inhabitants)
51 Km W of Bologna (386663 inhabitants)
68 Km N of Pistoia (90315 inhabitants)
69 Km NE of Carrara (63133 inhabitants)
70 Km NE of Massa (69479 inhabitants)
77 Km N of Lucca (89046 inhabitants)
78 Km NW of Prato (191150 inhabitants)
81 Km W of Ferrara (133155 inhabitants)
81 Km NE of Viareggio (62467 inhabitants)
83 Km W of Imola (69797 inhabitants)
83 Km NE of La Spezia (93959 inhabitants)
86 Km SE of Cremona (71901 inhabitants)
93 Km N of Pisa (89158 inhabitants)
93 Km NW of Scandicci (50609 inhabitants)
95 Km NW of Firenze (382808 inhabitants)
98 Km W of Faenza (58541 inhabitants)
99 Km SE of Piacenza (102191 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
Reviewed
Rev100 		ML 2.0 2023-07-04
09:21:47		 44.5222 10.6997 22 2023-07-04
10:10:03		 Sala Sismica INGV-Roma 118959341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-04 09:21:47 ± 0.14
Latitude 44.5222 ± 0.0117
Longitude 10.6997 ± 0.0139
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118959341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1177
Semi-minor axis of confidence ellipse (meter) 1116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 178
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 17
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.44701
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 12
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 118959341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-04 10:10:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAMP.HHZ. 2023-07-04T09:23:15.15 3.0 undecidable manual Sg 12.21 0
IV.NOCI.HHZ. 2023-07-04T09:23:14.08 3.0 negative manual Pn 4.04 0
GU.STV.HHZ. 2023-07-04T09:22:57.62 3.0 undecidable manual Sg 3.15 0
GU.RORO.HHZ. 2023-07-04T09:22:45.01 3.0 undecidable manual Sg 1.48 0
IV.VVLD.HHZ. 2023-07-04T09:22:37.22 3.0 undecidable manual Pn 1.1 0
IV.CSNT.HHZ. 2023-07-04T09:22:36.22 3.0 undecidable manual Sg 9.53 0
IV.CAFI.HHZ. 2023-07-04T09:22:14.51 3.0 negative manual Pg 3.86 0
IV.ATCC.EHZ. 2023-07-04T09:22:14.47 3.0 undecidable manual Pn -1.09 0
SI.LUSI.HHZ. 2023-07-04T09:22:12.56 0.3 undecidable manual P 7 160.617 54 -0.17 75
ST.VARA.EHZ. 2023-07-04T09:22:11.11 0.3 undecidable manual P 6 145.4433 54 0.26 75
ST.DOSS.HHZ. 2023-07-04T09:22:11.68 0.3 undecidable manual P 14 155.5221 54 -0.41 73
IV.CRE.HHZ. 2023-07-04T09:22:10.74 0.3 undecidable manual P 135 141.4473 54 0.4 74
IV.ROVR.HHZ. 2023-07-04T09:22:09.22 3.0 undecidable manual Sg 4.52 0
IV.OSSC.HHZ. 2023-07-04T09:22:07.63 0.3 undecidable manual P 158 118.992 96 0.66 72
GU.POPM.HHZ. 2023-07-04T09:22:04.08 0.3 undecidable manual S 175 53.1024 105 -0.07 95
IV.BDI.HHZ. 2023-07-04T09:22:04.11 0.3 undecidable manual S 189 51.6039 106 0.34 91
IV.FNVD.HHZ. 2023-07-04T09:22:03.10 0.3 undecidable manual S 139 51.7038 106 -0.68 82
IV.CSNT.HHZ. 2023-07-04T09:22:02.97 3.0 positive manual Pn -3.92 0
IV.SFI.EHZ. 2023-07-04T09:22:00.17 3.0 undecidable manual Pn -2.93 0
GU.MAIM.HHZ. 2023-07-04T09:21:59.58 0.3 undecidable manual P 194 69.5748 101 0.16 91
IV.ZCCA.HHZ. 2023-07-04T09:21:58.70 0.3 undecidable manual S 131 29.0487 120 0.53 91
IV.FNVD.HHZ. 2023-07-04T09:21:56.55 0.3 undecidable manual P 139 51.7038 106 -0.19 94
GU.POPM.HHZ. 2023-07-04T09:21:56.68 0.3 undecidable manual P 175 53.1024 105 -0.27 92
GU.GSCL.HHZ. 2023-07-04T09:21:56.27 0.3 undecidable manual S 205 20.9679 130 -0.14 99
IV.BDI.HHZ. 2023-07-04T09:21:56.18 0.3 undecidable manual P 189 51.6039 106 -0.55 86
IV.ERBM.EHN. 2023-07-04T09:21:53.31 0.3 undecidable manual P 243 25.4523 124 0.28 97
IV.ZCCA.HHZ. 2023-07-04T09:21:53.57 0.3 undecidable manual P 131 29.0487 120 0.07 100
GU.GSCL.HHZ. 2023-07-04T09:21:52.17 0.3 undecidable manual P 205 20.9679 130 -0.31 96
IV.RAVA.EHZ. 2023-07-04T09:21:52.77 3.0 undecidable manual P 0
IV.SBPO.HNZ. 2023-07-04T09:21:48.89 3.0 negative manual P -0.31 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.GSCL.HHE. ML:1.8 0.00034643550000000003 0.1792 AML other m 2023-07-04T09:22:13.46
IV.FNVD.HHN. ML:1.8 0.0001435 0.5 AML other m 2023-07-04T09:22:03.30
IV.FNVD.HHE. ML:1.9 0.000177 0.54 AML other m 2023-07-04T09:22:04.89
GU.POPM.HHE. ML:1.6 0.000081 0.22 AML other m 2023-07-04T09:22:05.67
GU.GSCL.HHN. ML:2.2 0.0008165 0.18 AML other m 2023-07-04T09:22:11.33
IV.ZCCA.HHE. ML:2.4 0.0010955 0.44 AML other m 2023-07-04T09:22:15.48
IV.ZCCA.HNE. ML:2.4 0.0011000028 0.448 AML other m 2023-07-04T09:22:15.48
IV.ZCCA.HHN. ML:2.1 0.0005455 1.6 AML other m 2023-07-04T09:22:16.11
IV.ZCCA.HNN. ML:2.1 0.000572 1.6 AML other m 2023-07-04T09:22:16.11
GU.MAIM.HHE. ML:1.4 0.00004555 1.58 AML other m 2023-07-04T09:22:17.82
IV.BDI.HHN. ML:1.8 0.00013350000000000002 0.84 AML other m 2023-07-04T09:22:19.51
IV.BDI.HHE. ML:1.8 0.00013000000000000002 0.92 AML other m 2023-07-04T09:22:20.53
GU.POPM.HHN. ML:1.6 0.00008834999999999999 0.54 AML other m 2023-07-04T09:22:21.27
ST.VARA.EHN. ML:2.2 0.00008245 0.94 AML other m 2023-07-04T09:22:30.92
IV.CRE.HHN. ML:1.7 0.000029599999999999998 1 AML other m 2023-07-04T09:22:30.98
ST.VARA.EHE. ML:2.4 0.0001325 0.52 AML other m 2023-07-04T09:22:31.32
GU.MAIM.HHN. ML:1.5 0.000050549999999999995 1.58 AML other m 2023-07-04T09:22:31.99
IV.CRE.HHE. ML:1.7 0.00003165 0.9 AML other m 2023-07-04T09:22:32.56
ST.DOSS.HHE. ML:2.0 0.0000479 0.64 AML other m 2023-07-04T09:22:34.40
SI.LUSI.HHE. ML:2.2 0.00006939999999999999 0.94 AML other m 2023-07-04T09:22:34.29
ST.DOSS.HHN. ML:2.0 0.00004675 1.56 AML other m 2023-07-04T09:22:34.21
SI.LUSI.HHN. ML:2.3 0.00009735 0.2 AML other m 2023-07-04T09:22:35.92
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
Waveforms Seismic signals in miniseed + resp format Download