Earthquake with magnitude of ML 2.3 on date 04-07-2020 and time 05:18:29 (Italy) in region 6 km SW Casola Valsenio (RA)

A magnitude ML 2.3 earthquake occured in region: 6 km SW Casola Valsenio (RA), on

  • 04-07-2020 03:18:29 (UTC)
  • 04-07-2020 05:18:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1750, 11.5960 at 27 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Casola Valsenio RA 6 2617 2617
Palazzuolo sul Senio FI 8 1154 3771
Castel del Rio BO 8 1246 5017
Fontanelice BO 10 1943 6960
Marradi FI 11 3139 10099
Borgo Tossignano BO 12 3288 13387
Casalfiumanese BO 14 3438 16825
Brisighella RA 15 7639 24464
Riolo Terme RA 15 5720 30184
Modigliana FC 16 4560 34744
Tredozio FC 16 1212 35956
Firenzuola FI 18 4726 40682

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Imola (69797 inhabitants)
26 Km W of Faenza (58541 inhabitants)
36 Km W of Forlì (117913 inhabitants)
41 Km SE of Bologna (386663 inhabitants)
52 Km NE of Prato (191150 inhabitants)
52 Km W of Cesena (96758 inhabitants)
53 Km NE of Firenze (382808 inhabitants)
55 Km W of Ravenna (159116 inhabitants)
57 Km NE of Scandicci (50609 inhabitants)
60 Km E of Pistoia (90315 inhabitants)
74 Km S of Ferrara (133155 inhabitants)
75 Km SE of Modena (184973 inhabitants)
79 Km W of Rimini (147750 inhabitants)
82 Km N of Arezzo (99543 inhabitants)
88 Km SE of Carpi (70699 inhabitants)
95 Km E of Lucca (89046 inhabitants)
96 Km SE of Reggio nell'Emilia (171345 inhabitants)
98 Km N of Siena (53903 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 2.3 2020-07-04
03:18:29
44.1753 11.596 27 2020-11-19
12:36:52
Bollettino Sismico Italiano INGV 80903441
Reviewed
Rev100
ML 2.3 2020-07-04
03:18:29
44.1733 11.6287 26 2020-07-04
03:25:16
Sala Sismica INGV-Roma 80755731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-04 03:18:29 ± 0.23
Latitude 44.1753 ± 0.0090
Longitude 11.5960 ± 0.0113
Depth (km) 27 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80903441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 953
Semi-minor axis of confidence ellipse (meter) 602
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 950.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.11691
Epicentral distance of station farthest from the epicenter (degree) 1.01084
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 36
Type of magnitude ML
Reference to an origin 80903441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-06 14:45:20

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 36
Type of magnitude ML
Reference to an origin 80755731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-04 03:25:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRMI.HHZ. 2020-07-04T03:18:51.04 0.6 undecidable manual S 230 64.7907 107 0.87 36
IV.CRE.HHZ. 2020-07-04T03:18:51.40 0.6 undecidable manual S 155 67.9764 106 0.42 42
IV.CRTC.HHZ. 2020-07-04T03:18:50.13 0.3 undecidable manual P 113 112.1988 99 1.45 36
IV.PII.HHZ. 2020-07-04T03:18:46.16 0.3 undecidable manual P 240 99.2229 101 -0.55 57
IV.PE3.EHZ. 2020-07-04T03:18:45.13 0.6 undecidable manual P 126 89.4438 102 -0.1 44
IV.RUFI.EHZ. 2020-07-04T03:18:44.24 0.3 undecidable manual S 190 38.0286 120 0.66 62
IV.SFI.EHZ. 2020-07-04T03:18:43.19 0.6 undecidable manual S 146 36.0417 121 0.06 48
IV.FNVD.HHZ. 2020-07-04T03:18:43.96 0.6 undecidable manual S 269 37.629 120 0.47 45
GU.POPM.HHZ. 2020-07-04T03:18:42.60 0.6 undecidable manual P 258 68.376 106 0.52 42
IV.FAEN.HNZ. 2020-07-04T03:18:42.72 0.6 undecidable manual S 60 25.6521 132 1.83 22
IV.PARC.HHZ. 2020-07-04T03:18:42.90 0.6 undecidable manual P 138 77.7666 104 -0.58 40
IV.CRE.HHZ. 2020-07-04T03:18:42.05 0.1 positive manual P 155 67.9764 106 0.03 92
IV.RINC.HHZ. 2020-07-04T03:18:42.48 0.3 undecidable manual S 178 32.0457 125 0.25 71
IV.RONT.HHZ. 2020-07-04T03:18:41.37 0.3 undecidable manual S 213 23.9538 134 0.8 60
IV.IMOL.EHZ. 2020-07-04T03:18:41.72 0.6 undecidable manual S 30 23.5542 135 1.25 32
IV.CRMI.HHZ. 2020-07-04T03:18:41.93 0.3 undecidable manual P 230 64.7907 107 0.38 65
IV.SEI.HHZ. 2020-07-04T03:18:40.98 0.6 undecidable manual S 235 23.1546 135 0.56 45
IV.MTRZ.HHZ. 2020-07-04T03:18:40.67 1.0 undecidable manual S 318 20.4684 139 0.76 21
IV.VISG.HHZ. 2020-07-04T03:18:38.29 0.6 undecidable manual S 277 12.9759 152 -0.49 46
IV.BRIS.HHZ. 2020-07-04T03:18:38.70 0.6 undecidable manual S 68 14.5743 149 -0.3 48
IV.LMD.HHZ. 2020-07-04T03:18:38.19 0.6 undecidable manual S 141 13.9749 150 -0.72 42
IV.BRSN.EHZ. 2020-07-04T03:18:38.39 0.3 undecidable manual P 72 40.3263 118 0.34 68
IV.FNVD.HHZ. 2020-07-04T03:18:37.37 0.1 undecidable manual P 269 37.629 120 -0.32 91
IV.RUFI.EHZ. 2020-07-04T03:18:37.57 0.1 negative manual P 190 38.0286 120 -0.17 94
IT.FAZ.HNZ. 2020-07-04T03:18:36.43 0.3 undecidable manual P 60 27.0507 130 0.07 73
IV.SFI.EHZ. 2020-07-04T03:18:36.93 0.3 undecidable manual P 146 36.0417 121 -0.55 65
IV.RINC.HHZ. 2020-07-04T03:18:36.76 0.1 negative manual P 178 32.0457 125 -0.2 95
IV.FAEN.HNZ. 2020-07-04T03:18:36.40 0.3 undecidable manual P 60 25.6521 132 0.21 72
IV.MTRZ.HHZ. 2020-07-04T03:18:35.68 0.1 positive manual P 318 20.4684 139 0.05 100
IV.RONT.HHZ. 2020-07-04T03:18:35.96 0.1 negative manual P 213 23.9538 134 -0.04 99
IV.SEI.HHZ. 2020-07-04T03:18:35.64 0.3 undecidable manual P 235 23.1546 135 -0.28 71
IV.IMOL.EHZ. 2020-07-04T03:18:35.85 0.3 undecidable manual P 30 23.5542 135 -0.1 74
IV.LMD.HHZ. 2020-07-04T03:18:34.15 0.1 negative manual P 141 13.9749 150 -0.9 78
IV.VISG.HHZ. 2020-07-04T03:18:34.25 0.1 negative manual P 277 12.9759 152 -0.72 84
IV.BRIS.HHZ. 2020-07-04T03:18:34.38 0.1 undecidable manual P 68 14.5743 149 -0.72 85
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHE. ML:2.4 0.00125 0.44 AML other m 2020-07-04T03:18:38.62
IV.VISG.HHN. ML:2.4 0.00135 0.12 AML other m 2020-07-04T03:18:38.50
IV.LMD.HHE. ML:2.6 0.001955 0.32 AML other m 2020-07-04T03:18:38.51
IV.LMD.HHN. ML:2.8 0.0028599999999999997 0.24 AML other m 2020-07-04T03:18:38.51
IV.BRIS.HHE. ML:2.8 0.0029050000000000005 1.5 AML other m 2020-07-04T03:18:39.88
IV.BRIS.HHN. ML:3.0 0.004634999999999999 0.3 AML other m 2020-07-04T03:18:39.14
IV.SEI.HHE. ML:2.8 0.002935 0.56 AML other m 2020-07-04T03:18:41.28
IV.SEI.HHN. ML:3.1 0.00535 0.4 AML other m 2020-07-04T03:18:41.38
IV.RONT.HHN. ML:2.7 0.0019 1.1 AML other m 2020-07-04T03:18:42.31
IV.RONT.HHE. ML:3.0 0.0037300000000000002 0.36 AML other m 2020-07-04T03:18:42.76
IV.MTRZ.HHE. ML:2.7 0.002005 1.62 AML other m 2020-07-04T03:18:43.02
IV.MTRZ.HNE. ML:2.6 0.001965 1.62 AML other m 2020-07-04T03:18:43.02
IV.MTRZ.HHN. ML:2.6 0.00156 0.42 AML other m 2020-07-04T03:18:43.60
IV.MTRZ.HNN. ML:2.5 0.00147 0.36 AML other m 2020-07-04T03:18:43.22
IV.SFI.HNE. ML:2.3 0.0006559999999999999 0.4 AML other m 2020-07-04T03:18:43.30
IV.SFI.EHE. ML:2.3 0.000611 0.4 AML other m 2020-07-04T03:18:43.50
IV.SFI.HNN. ML:2.1 0.00036199999999999996 0.74 AML other m 2020-07-04T03:18:43.52
IV.SFI.EHN. ML:2.1 0.00039200000000000004 0.72 AML other m 2020-07-04T03:18:43.89
IV.RINC.HHE. ML:2.4 0.0007635000000000001 0.28 AML other m 2020-07-04T03:18:43.67
IV.RINC.HHN. ML:2.0 0.0003705 0.72 AML other m 2020-07-04T03:18:43.28
IV.RUFI.EHE. ML:1.8 0.0001795 0.32 AML other m 2020-07-04T03:18:44.28
IV.RUFI.EHN. ML:2.0 0.0003135 0.52 AML other m 2020-07-04T03:18:45.03
IV.CRMI.HHE. ML:1.3 0.000036400000000000004 0.98 AML other m 2020-07-04T03:18:51.61
IV.CRMI.HHN. ML:1.5 0.00005 1.22 AML other m 2020-07-04T03:18:51.28
IV.CRE.HHN. ML:2.0 0.000174 0.32 AML other m 2020-07-04T03:18:53.55
IV.CRE.HHE. ML:1.8 0.00010899999999999999 0.66 AML other m 2020-07-04T03:18:53.37
GU.POPM.HHE. ML:1.6 0.0000615 0.28 AML other m 2020-07-04T03:18:55.00
GU.POPM.HHN. ML:1.8 0.00009235 0.86 AML other m 2020-07-04T03:18:57.62
IV.PII.HHE. ML:2.0 0.0000868 1.18 AML other m 2020-07-04T03:18:59.13
IV.PARC.HHN. ML:1.8 0.00007985 0.52 AML other m 2020-07-04T03:18:59.50
IV.PARC.HHE. ML:1.7 0.00006510000000000001 0.78 AML other m 2020-07-04T03:19:00.07
IV.PE3.EHN. ML:2.6 0.000489 1.6 AML other m 2020-07-04T03:19:01.98
IV.PII.HHN. ML:1.9 0.00007645 1.12 AML other m 2020-07-04T03:19:02.24
IV.NDIM.HHN. ML:2.4 0.0002445 0.08 AML other m 2020-07-04T03:19:04.77
IV.PE3.EHE. ML:2.5 0.000359 0.52 AML other m 2020-07-04T03:19:05.38
IV.NDIM.HHE. ML:2.8 0.000745 0.08 AML other m 2020-07-04T03:19:07.75
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