Earthquake with magnitude of ML 1.0 on date 21-09-2019 and time 22:36:10 (UTC) in region 8 km E Castiglione dei Pepoli (BO)

A magnitude ML 1.0 earthquake occured in region: 8 km E Castiglione dei Pepoli (BO), on

  • 21-09-2019 22:36:10 (UTC)
  • 22-09-2019 00:36:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.12, 11.25 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 8 5648 5648
Firenzuola FI 10 4726 10374
San Benedetto Val di Sambro BO 11 4315 14689
Vernio PO 11 6060 20749
Monghidoro BO 12 3749 24498
Barberino di Mugello FI 14 10836 35334
Camugnano BO 14 1885 37219
Cantagallo PO 15 3105 40324
Grizzana Morandi BO 17 3916 44240
Monzuno BO 17 6328 50568
Loiano BO 18 4294 54862
Castel di Casio BO 18 3448 58310
Scarperia e San Piero FI 19 12217 70527
Vaiano PO 20 9895 80422

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Prato (191150 inhabitants)
34 Km NE of Pistoia (90315 inhabitants)
39 Km N of Firenze (382808 inhabitants)
41 Km N of Scandicci (50609 inhabitants)
42 Km S of Bologna (386663 inhabitants)
45 Km SW of Imola (69797 inhabitants)
54 Km W of Faenza (58541 inhabitants)
64 Km SE of Modena (184973 inhabitants)
64 Km W of Forlì (117913 inhabitants)
67 Km E of Lucca (89046 inhabitants)
79 Km SE of Carpi (70699 inhabitants)
79 Km W of Cesena (96758 inhabitants)
81 Km SE of Reggio nell'Emilia (171345 inhabitants)
82 Km NE of Pisa (89158 inhabitants)
83 Km W of Ravenna (159116 inhabitants)
85 Km SW of Ferrara (133155 inhabitants)
85 Km E of Viareggio (62467 inhabitants)
89 Km NW of Arezzo (99543 inhabitants)
89 Km E of Massa (69479 inhabitants)
90 Km N of Siena (53903 inhabitants)
92 Km E of Carrara (63133 inhabitants)
98 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 1.0 2019-09-21
22:36:10
44.12 11.25 9 2019-09-21
23:14:11
Sala Sismica INGV-Roma 72633731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-21 22:36:10 ± 0.09
Latitude 44.12 ± 0.01
Longitude 11.25 ± 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 72633731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 567
Semi-minor axis of confidence ellipse (meter) 445
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) 570
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5261
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 72633731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-21 23:14:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
RD.PGF.BHZ. 2019-09-21T22:36:51.96 3.0 undecidable manual Pg 3.66 0
IV.BARO.EHZ. 2019-09-21T22:36:44.99 3.0 positive manual Pn 0.55 0
GU.GSCL.HHZ. 2019-09-21T22:36:29.11 0.6 undecidable manual S 296 0.5261 50 0.38 43
IV.NDIM.HHZ. 2019-09-21T22:36:24.93 3.0 negative manual P -0.19 0
IV.BRIS.HHZ. 2019-09-21T22:36:24.82 0.3 undecidable manual S 74 0.384 50 0.3 68
GU.POPM.HHZ. 2019-09-21T22:36:23.91 0.3 undecidable manual S 258 0.3624 50 0.03 72
IV.LMD.HHE. 2019-09-21T22:36:22.31 0.6 undecidable manual S 98 0.331 50 -0.64 42
GU.GSCL.HHZ. 2019-09-21T22:36:21.73 1.0 undecidable manual P 296 0.5261 50 0.84 18
IV.MTRZ.HNZ. 2019-09-21T22:36:20.26 0.6 undecidable manual S 33 0.2275 109 0.77 40
IV.BRIS.HHZ. 2019-09-21T22:36:18.25 0.6 undecidable manual P 74 0.384 50 -0.22 46
IV.MPPT.EHZ. 2019-09-21T22:36:18.63 0.3 undecidable manual S 215 0.2005 112 0.13 73
IV.LMD.HHE. 2019-09-21T22:36:17.74 0.6 undecidable manual P 98 0.331 50 0.18 47
IV.ZCCA.HNZ. 2019-09-21T22:36:17.07 1.0 undecidable manual P 319 0.3013 50 0.03 24
GU.POPM.HHZ. 2019-09-21T22:36:17.25 0.6 undecidable manual P 258 0.3624 50 -0.84 38
IV.MOCL.EHZ. 2019-09-21T22:36:16.47 0.3 undecidable manual S 203 0.1277 122 0.5 69
IV.MTRZ.HNZ. 2019-09-21T22:36:15.42 0.6 undecidable manual P 33 0.2275 109 -0.13 49
IV.SEI.HHZ. 2019-09-21T22:36:15.07 0.3 undecidable manual S 131 0.1034 128 -0.14 74
IV.FNVD.HHZ. 2019-09-21T22:36:14.95 0.3 undecidable manual S 297 0.1016 128 -0.21 73
IV.MPPT.EHZ. 2019-09-21T22:36:14.92 0.1 undecidable manual P 215 0.2005 112 -0.07 99
IV.MOCL.EHZ. 2019-09-21T22:36:13.62 0.1 undecidable manual P 203 0.1277 122 0.09 100
IV.SEI.HHZ. 2019-09-21T22:36:12.96 0.3 undecidable manual P 131 0.1034 128 -0.13 75
IV.FNVD.HHZ. 2019-09-21T22:36:12.74 0.1 undecidable manual P 297 0.1016 128 -0.32 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FNVD.HHE. ML:1.4 0.0003508829 0.1024 AML other m 2019-09-21T22:36:15.24
IV.FNVD.HHN. ML:1.5 0.0004128351 0.0768 AML other m 2019-09-21T22:36:15.47
IV.SEI.HHE. ML:1.2 0.00017830975 0.1792 AML other m 2019-09-21T22:36:15.96
IV.SEI.HHN. ML:1.4 0.00031048215 0.3584 AML other m 2019-09-21T22:36:15.69
IV.MOCL.EHE. ML:0.9 8.7628015E-5 0.2304 AML other m 2019-09-21T22:36:16.62
IV.MOCL.EHN. ML:1.1 0.000125163 0.1792 AML other m 2019-09-21T22:36:16.59
IV.MPPT.EHE. ML:0.5 1.8143285E-5 0.3584 AML other m 2019-09-21T22:36:18.92
IV.MPPT.EHN. ML:0.5 2.024697E-5 0.32 AML other m 2019-09-21T22:36:18.89
GU.POPM.HHE. ML:1 3.451727E-5 0.2176 AML other m 2019-09-21T22:36:24.60
GU.POPM.HHN. ML:0.9 3.110117E-5 0.1664 AML other m 2019-09-21T22:36:24.72
IV.BRIS.HHE. ML:1.1 3.8307355E-5 0.5248 AML other m 2019-09-21T22:36:29.34
IV.BRIS.HHN. ML:1.2 5.1540105E-5 0.4224 AML other m 2019-09-21T22:36:29.32
GU.GSCL.HHE. ML:0.8 1.3929545E-5 0.2816 AML other m 2019-09-21T22:36:30.39
GU.GSCL.HHN. ML:0.8 1.53686815E-5 0.3456 AML other m 2019-09-21T22:36:30.55
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