Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 21-01-2020 and time 00:05:47 (UTC) in region 3 km SE Castiglione dei Pepoli (BO)

A magnitude ML 2.1 earthquake occured in region: 3 km SE Castiglione dei Pepoli (BO), on

  • 21-01-2020 00:05:47 (UTC)
  • 21-01-2020 01:05:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1250, 11.1840 at 9 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
Castiglione dei Pepoli BO 3 5648 5648
Vernio PO 8 6060 11708
Camugnano BO 9 1885 13593
San Benedetto Val di Sambro BO 11 4315 17908
Cantagallo PO 12 3105 21013
Castel di Casio BO 13 3448 24461
Barberino di Mugello FI 15 10836 35297
Grizzana Morandi BO 15 3916 39213
Sambuca Pistoiese PT 15 1626 40839
Monghidoro BO 15 3749 44588
Firenzuola FI 16 4726 49314
Alto Reno Terme BO 17 6960 56274
Vaiano PO 18 9895 66169
Monzuno BO 18 6328 72497
Vergato BO 19 7639 80136
Loiano BO 20 4294 84430

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of Prato (191150 inhabitants)
30 Km NE of Pistoia (90315 inhabitants)
40 Km N of Firenze (382808 inhabitants)
41 Km N of Scandicci (50609 inhabitants)
43 Km SW of Bologna (386663 inhabitants)
49 Km SW of Imola (69797 inhabitants)
59 Km W of Faenza (58541 inhabitants)
62 Km SE of Modena (184973 inhabitants)
63 Km E of Lucca (89046 inhabitants)
69 Km W of Forlì (117913 inhabitants)
77 Km SE of Carpi (70699 inhabitants)
77 Km SE of Reggio nell'Emilia (171345 inhabitants)
77 Km NE of Pisa (89158 inhabitants)
80 Km E of Viareggio (62467 inhabitants)
84 Km E of Massa (69479 inhabitants)
85 Km W of Cesena (96758 inhabitants)
86 Km SW of Ferrara (133155 inhabitants)
87 Km E of Carrara (63133 inhabitants)
87 Km W of Ravenna (159116 inhabitants)
90 Km N of Siena (53903 inhabitants)
92 Km NW of Arezzo (99543 inhabitants)
95 Km NE of Livorno (159219 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 2.1 2020-01-21
00:05:47		 44.1253 11.1842 9 2020-07-18
21:08:19		 Bollettino Sismico Italiano INGV 75724671
Reviewed
Rev100 		ML 2.1 2020-01-21
00:05:47		 44.1293 11.177 9 2020-01-21
00:16:48		 Sala Sismica INGV-Roma 75689801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-21 00:05:47 ± 0.09
Latitude 44.1253 ± 0.0063
Longitude 11.1842 ± 0.0063
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75724671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 655
Semi-minor axis of confidence ellipse (meter) 431
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 24
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.87954
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 75724671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-06 10:45:05

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 75689801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-21 00:16:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LAV9.HNZ. 2020-01-21T00:06:48.94 3.0 undecidable manual Sg -7.47 0
IV.MMO1.EHZ. 2020-01-21T00:06:47.04 3.0 undecidable manual Sg 5.42 0
IV.PTRJ.HNZ. 2020-01-21T00:06:41.45 3.0 undecidable manual Pg 4.43 0
IV.VIVA.HHZ. 2020-01-21T00:06:38.16 3.0 undecidable manual Sn -9.99 0
IV.PAOL.HHZ. 2020-01-21T00:06:38.21 3.0 undecidable manual Pg -2.45 0
IV.VARE.HHZ. 2020-01-21T00:06:27.66 3.0 undecidable manual Pg 11.49 0
IV.CSNT.HHZ. 2020-01-21T00:06:11.17 0.6 undecidable manual S 173 72.8715 50 0.82 36
MN.VLC.HHZ. 2020-01-21T00:06:08.31 0.6 undecidable manual S 274 63.5919 50 0.43 42
IV.SFI.EHZ. 2020-01-21T00:06:07.30 0.6 undecidable manual S 115 58.2972 50 0.85 36
GU.GSCL.HHZ. 2020-01-21T00:06:06.57 0.6 undecidable manual S 298 53.502 50 1.38 28
IV.VIVA.HHZ. 2020-01-21T00:06:05.59 3.0 negative manual Pn -9.99 0
GU.GRAM.HHZ. 2020-01-21T00:06:05.79 0.3 undecidable manual P 295 97.6245 50 1.09 45
IV.BDI.HHZ. 2020-01-21T00:06:03.14 0.6 undecidable manual S 262 47.4192 50 -0.41 43
IV.LMD.HHZ. 2020-01-21T00:06:02.09 0.6 undecidable manual S 97 42.0246 50 -0.02 48
IV.MBAL.EHZ. 2020-01-21T00:06:02.50 3.0 undecidable manual Pn -4.31 0
IV.CRMI.HHZ. 2020-01-21T00:06:01.85 0.6 undecidable manual S 204 40.0266 50 0.25 46
IV.CSNT.HHZ. 2020-01-21T00:06:01.22 0.1 undecidable manual P 173 72.8715 50 0.34 84
IV.OSSC.HHZ. 2020-01-21T00:06:00.22 0.1 undecidable manual P 176 66.9774 50 0.25 87
IV.ZCCA.HHZ. 2020-01-21T00:06:00.41 0.6 undecidable manual S 327 29.9478 107 1.6 26
IV.RUFI.EHZ. 2020-01-21T00:06:00.78 0.6 undecidable manual S 141 41.1255 50 -1.1 33
MN.VLC.HHZ. 2020-01-21T00:05:59.53 0.3 undecidable manual P 274 63.5919 50 0.07 68
GU.POPM.HHZ. 2020-01-21T00:05:59.54 0.6 undecidable manual S 255 35.1426 50 -0.75 39
IV.TRIF.CHZ. 2020-01-21T00:05:59.20 3.0 positive manual Pg -1.13 0
IV.SFI.EHZ. 2020-01-21T00:05:58.59 0.3 undecidable manual P 115 58.2972 50 -0.05 69
IV.IMOL.EHZ. 2020-01-21T00:05:58.74 0.3 undecidable manual P 59 51.4152 50 1.16 48
GU.GSCL.HHZ. 2020-01-21T00:05:57.61 0.1 undecidable manual P 298 53.502 50 -0.3 88
GU.CARD.HHZ. 2020-01-21T00:05:57.89 0.3 undecidable manual P 259 56.9985 50 -0.56 61
IV.RONT.HHZ. 2020-01-21T00:05:57.65 0.3 undecidable manual S 126 24.6531 110 0.6 64
IV.BRIS.HHZ. 2020-01-21T00:05:56.94 0.3 undecidable manual P 76 47.619 50 -0.06 70
IV.BDI.HHZ. 2020-01-21T00:05:56.31 0.1 undecidable manual P 262 47.4192 50 -0.65 80
IV.LMD.HHZ. 2020-01-21T00:05:55.61 0.1 undecidable manual P 97 42.0246 50 -0.52 85
IV.VISG.HHZ. 2020-01-21T00:05:55.46 0.1 undecidable manual S 70 21.1677 113 -0.45 90
IV.RUFI.EHZ. 2020-01-21T00:05:55.70 0.1 undecidable manual P 141 41.1255 50 -0.29 90
IV.CRMI.HHZ. 2020-01-21T00:05:55.94 0.3 undecidable manual P 204 40.0266 50 0.11 70
IV.MPPT.EHZ. 2020-01-21T00:05:55.78 0.3 undecidable manual S 202 20.0688 114 0.2 71
IV.SEI.HHZ. 2020-01-21T00:05:54.51 0.3 undecidable manual S 120 15.9729 119 0.21 72
IV.ZCCA.HHZ. 2020-01-21T00:05:54.34 0.1 undecidable manual P 327 29.9478 107 0.12 95
IV.MTRZ.HHZ. 2020-01-21T00:05:54.04 0.1 undecidable manual P 43 28.2495 107 0.15 95
GU.POPM.HHZ. 2020-01-21T00:05:54.56 0.1 undecidable manual P 255 35.1426 50 -0.52 86
IV.RONT.HHZ. 2020-01-21T00:05:53.09 0.1 undecidable manual P 126 24.6531 110 -0.12 96
IV.MPPT.EHZ. 2020-01-21T00:05:52.37 0.1 positive manual P 202 20.0688 114 0.01 99
IV.VISG.HHZ. 2020-01-21T00:05:52.20 0.1 positive manual P 70 21.1677 113 -0.35 92
IV.FNVD.HHZ. 2020-01-21T00:05:51.66 0.3 undecidable manual S 314 6.7932 143 -0.18 73
IV.SEI.HHZ. 2020-01-21T00:05:51.58 0.1 undecidable manual P 120 15.9729 119 -0.04 99
IV.FNVD.HHZ. 2020-01-21T00:05:50.12 0.1 negative manual P 314 6.7932 143 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:2.6 0.0035949999999999997 0.32 AML other m 2020-01-21T00:05:55.97
IV.SEI.HHN. ML:2.7 0.004634999999999999 0.3 AML other m 2020-01-21T00:05:55.67
IV.VISG.HHN. ML:2.3 0.001565 0.36 AML other m 2020-01-21T00:05:55.86
IV.VISG.HHE. ML:2.2 0.0010695 0.72 AML other m 2020-01-21T00:05:56.09
IV.MPPT.EHE. ML:2.3 0.001695 0.22 AML other m 2020-01-21T00:05:56.13
IV.MPPT.EHN. ML:2.5 0.0026 0.54 AML other m 2020-01-21T00:05:56.50
IV.RONT.HHN. ML:2.6 0.002185 0.16 AML other m 2020-01-21T00:05:58.87
IV.RONT.HHE. ML:2.4 0.0016549999999999998 0.28 AML other m 2020-01-21T00:05:59.86
GU.POPM.HHE. ML:2.4 0.0009519999999999999 0.22 AML other m 2020-01-21T00:06:00.41
GU.POPM.HHN. ML:2.5 0.0013085 0.6 AML other m 2020-01-21T00:06:00.25
IV.ZCCA.HHE. ML:2.0 0.0005290000000000001 0.34 AML other m 2020-01-21T00:06:01.02
IV.ZCCA.HHN. ML:2.0 0.000488 0.38 AML other m 2020-01-21T00:06:01.32
IV.CRMI.HHE. ML:1.6 0.00013949999999999998 1.6 AML other m 2020-01-21T00:06:02.89
IV.CRMI.HNE. ML:2.0 0.000365 1.62 AML other m 2020-01-21T00:06:02.90
IV.MTRZ.HHE. ML:2.2 0.0007535 0.44 AML other m 2020-01-21T00:06:04.60
IV.MTRZ.HNE. ML:2.1 0.0007379999999999999 0.46 AML other m 2020-01-21T00:06:04.60
IV.BDI.HNE. ML:2.1 0.00033350000000000003 1.06 AML other m 2020-01-21T00:06:04.97
IV.BDI.HHE. ML:2.0 0.0002855 1.06 AML other m 2020-01-21T00:06:04.97
IV.BDI.HHN. ML:2.1 0.0003185 1.3 AML other m 2020-01-21T00:06:05.75
IV.BDI.HNN. ML:2.1 0.00035350000000000003 1.28 AML other m 2020-01-21T00:06:05.75
IV.LMD.HHN. ML:1.9 0.000245 0.3 AML other m 2020-01-21T00:06:05.43
IV.RUFI.EHE. ML:1.8 0.00019350000000000001 0.68 AML other m 2020-01-21T00:06:05.93
IV.CRMI.HHN. ML:1.4 0.00008535 0.8 AML other m 2020-01-21T00:06:05.20
IV.CRMI.HNN. ML:1.7 0.000185 0.84 AML other m 2020-01-21T00:06:05.19
IV.LMD.HHE. ML:1.7 0.0001785 0.4 AML other m 2020-01-21T00:06:05.52
IV.MTRZ.HNN. ML:2.2 0.0008514999999999999 1.16 AML other m 2020-01-21T00:06:07.78
IV.MTRZ.HHN. ML:2.2 0.0007715 1.14 AML other m 2020-01-21T00:06:07.77
IV.BRIS.HHN. ML:2.1 0.0003695 0.66 AML other m 2020-01-21T00:06:07.42
GU.CARD.HHE. ML:2.0 0.00023249999999999999 0.96 AML other m 2020-01-21T00:06:07.55
IV.SFI.EHE. ML:1.8 0.0001416 0.44 AML other m 2020-01-21T00:06:08.35
IV.SFI.HNN. ML:2.0 0.0001985 0.6 AML other m 2020-01-21T00:06:08.17
IV.RUFI.EHN. ML:1.6 0.0001485 0.42 AML other m 2020-01-21T00:06:08.79
GU.CARD.HHN. ML:2.1 0.00029200000000000005 0.36 AML other m 2020-01-21T00:06:08.79
IV.BRIS.HHE. ML:2.0 0.0003105 1.36 AML other m 2020-01-21T00:06:09.02
IV.SFI.EHN. ML:1.8 0.00014600000000000003 0.58 AML other m 2020-01-21T00:06:09.41
IV.SFI.HNE. ML:2.0 0.000191 1.02 AML other m 2020-01-21T00:06:13.55
GU.GRAM.HHE. ML:2.2 0.00015400000000000003 0.62 AML other m 2020-01-21T00:06:23.03
GU.GRAM.HHN. ML:2.1 0.00011999999999999999 0.62 AML other m 2020-01-21T00:06:25.86
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