Earthquake with magnitude of ML 1.4 on date 21-01-2020 and time 02:19:42 (UTC) in region 2 km SE Castiglione dei Pepoli (BO)

A magnitude ML 1.4 earthquake occured in region: 2 km SE Castiglione dei Pepoli (BO), on

  • 21-01-2020 02:19:42 (UTC)
  • 21-01-2020 03:19:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.13, 11.17 at 9 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.

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 2 5648 5648
Camugnano BO 8 1885 7533
Vernio PO 9 6060 13593
San Benedetto Val di Sambro BO 11 4315 17908
Castel di Casio BO 11 3448 21356
Cantagallo PO 12 3105 24461
Sambuca Pistoiese PT 14 1626 26087
Grizzana Morandi BO 14 3916 30003
Alto Reno Terme BO 15 6960 36963
Barberino di Mugello FI 16 10836 47799
Monghidoro BO 16 3749 51548
Firenzuola FI 17 4726 56274
Vergato BO 18 7639 63913
Vaiano PO 18 9895 73808
Monzuno BO 18 6328 80136
Loiano BO 20 4294 84430
Gaggio Montano BO 20 4878 89308

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of Prato (191150 inhabitants)
30 Km NE of Pistoia (90315 inhabitants)
41 Km N of Firenze (382808 inhabitants)
41 Km N of Scandicci (50609 inhabitants)
43 Km SW of Bologna (386663 inhabitants)
50 Km W of Imola (69797 inhabitants)
60 Km W of Faenza (58541 inhabitants)
61 Km SE of Modena (184973 inhabitants)
62 Km NE of Lucca (89046 inhabitants)
71 Km W of Forlì (117913 inhabitants)
76 Km SE of Carpi (70699 inhabitants)
76 Km SE of Reggio nell'Emilia (171345 inhabitants)
77 Km NE of Pisa (89158 inhabitants)
79 Km E of Viareggio (62467 inhabitants)
82 Km E of Massa (69479 inhabitants)
86 Km E of Carrara (63133 inhabitants)
86 Km W of Cesena (96758 inhabitants)
86 Km SW of Ferrara (133155 inhabitants)
88 Km W of Ravenna (159116 inhabitants)
91 Km N of Siena (53903 inhabitants)
94 Km NW of Arezzo (99543 inhabitants)
94 Km NE of Livorno (159219 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.4 2020-01-21
02:19:42
44.13 11.17 9 2020-01-21
02:28:28
Sala Sismica INGV-Roma 75691381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-21 02:19:42 ± 0.11
Latitude 44.13 ± 0.01
Longitude 11.17 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75691381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1026
Semi-minor axis of confidence ellipse (meter) 476
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 40
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41549
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 75691381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-21 02:28:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CPGN.HNZ. 2020-01-21T02:19:57.60 3.0 undecidable manual P -0.01 0
IV.RUFI.EHZ. 2020-01-21T02:19:57.35 0.3 undecidable manual S 140 0.3822 50 0.11 69
IV.ZCCA.HHZ. 2020-01-21T02:19:53.78 0.3 undecidable manual S 328 0.259 107 0.37 67
IV.RONT.HHZ. 2020-01-21T02:19:52.99 0.3 undecidable manual S 126 0.2356 109 0.43 66
IV.RUFI.EHZ. 2020-01-21T02:19:51.92 0.3 undecidable manual P 140 0.3822 50 0.71 58
IV.BDI.HNN. 2020-01-21T02:19:51.47 0.1 undecidable manual P 261 0.4155 50 -0.3 88
IV.CRMI.HNE. 2020-01-21T02:19:51.03 0.3 undecidable manual P 202 0.3615 50 0.19 68
IV.SEI.HHZ. 2020-01-21T02:19:50.01 0.3 undecidable manual S 119 0.1574 117 0.22 70
IV.MTRZ.HNZ. 2020-01-21T02:19:49.02 0.1 undecidable manual P 45 0.259 107 0.01 96
GU.POPM.HHE. 2020-01-21T02:19:49.58 0.1 undecidable manual P 254 0.3067 50 -0.33 89
IV.ZCCA.HHZ. 2020-01-21T02:19:49.36 0.1 undecidable manual P 328 0.259 107 0.36 89
IV.RONT.HHZ. 2020-01-21T02:19:48.39 0.1 undecidable manual P 126 0.2356 109 -0.12 94
IV.VISG.HHZ. 2020-01-21T02:19:47.11 0.1 undecidable manual P 73 0.2005 112 -0.67 82
IV.MPPT.EHN. 2020-01-21T02:19:47.38 0.1 undecidable manual P 198 0.1817 114 -0.02 97
IV.SEI.HHZ. 2020-01-21T02:19:46.48 0.1 undecidable manual P 119 0.1574 117 -0.43 90
IV.FNVD.HHZ. 2020-01-21T02:19:45.07 0.1 undecidable manual P 320 0.0486 149 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHN. ML:1.2 0.0001065 1.56 AML other m 2020-01-21T02:19:52.00
IV.RONT.HHE. ML:1.7 0.0002705 0.86 AML other m 2020-01-21T02:19:54.52
IV.VISG.HHE. ML:1.2 0.0001204 1.54 AML other m 2020-01-21T02:19:55.18
IV.RONT.HHN. ML:1.5 0.000171 0.2 AML other m 2020-01-21T02:19:55.77
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download