Earthquake with magnitude of ML 1.9 on date 23-01-2015 and time 11:11:00 (Italy) in region 1 km SE Castiglione dei Pepoli (BO)

A magnitude ML 1.9 earthquake occured in region: 1 km SE Castiglione dei Pepoli (BO), on

  • 23-01-2015 10:11:00 (UTC)
  • 23-01-2015 11:11:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1400, 11.1600 at 10 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
Castiglione dei Pepoli BO 1 5648 5648
Camugnano BO 7 1885 7533
Vernio PO 10 6060 13593
Castel di Casio BO 10 3448 17041
San Benedetto Val di Sambro BO 10 4315 21356
Cantagallo PO 13 3105 24461
Grizzana Morandi BO 13 3916 28377
Sambuca Pistoiese PT 13 1626 30003
Alto Reno Terme BO 15 6960 36963
Monghidoro BO 16 3749 40712
Vergato BO 17 7639 48351
Barberino di Mugello FI 17 10836 59187
Firenzuola FI 18 4726 63913
Monzuno BO 18 6328 70241
Gaggio Montano BO 19 4878 75119
Vaiano PO 19 9895 85014
Loiano BO 20 4294 89308

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Prato (191150 inhabitants)
30 Km NE of Pistoia (90315 inhabitants)
42 Km N of Firenze (382808 inhabitants)
42 Km SW of Bologna (386663 inhabitants)
42 Km N of Scandicci (50609 inhabitants)
50 Km W of Imola (69797 inhabitants)
59 Km SE of Modena (184973 inhabitants)
60 Km W of Faenza (58541 inhabitants)
62 Km NE of Lucca (89046 inhabitants)
71 Km W of Forlì (117913 inhabitants)
75 Km SE of Carpi (70699 inhabitants)
75 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)
85 Km E of Carrara (63133 inhabitants)
86 Km SW of Ferrara (133155 inhabitants)
87 Km W of Cesena (96758 inhabitants)
88 Km W of Ravenna (159116 inhabitants)
92 Km N of Siena (53903 inhabitants)
94 Km NE of Livorno (159219 inhabitants)
95 Km NW of Arezzo (99543 inhabitants)
99 Km SE of Parma (192836 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 1.9 2015-01-23
10:11:00
44.1397 11.1598 10 2015-10-19
09:26:59
Bollettino Sismico Italiano INGV 21397851
Reviewed
Rev100
ML 1.9 2015-01-23
10:11:00
44.1397 11.1597 10 2015-01-23
10:21:28
Sala Sismica INGV-Roma 16683211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-01-23 10:11:00 ± 0.1
Latitude 44.1397 ± 0.0054
Longitude 11.1598 ± 0.0063
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 21397851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 632
Semi-minor axis of confidence ellipse (meter) 483
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 13
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.39300
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 1
Type of magnitude ML
Reference to an origin 21397851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-09-15 14:42:36

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 1
Type of magnitude ML
Reference to an origin 16683211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-01-23 10:21:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RUFI.EHZ. 2015-01-23T10:11:14.24 0.3 undecidable manual S 140 43.623 50 -0.22 67
GU.POPM.HHZ. 2015-01-23T10:11:11.57 0.3 undecidable manual S 252 33.744 50 -0.26 68
IV.RUFI.EHZ. 2015-01-23T10:11:08.46 0.1 undecidable manual P 140 43.623 50 0.05 93
IV.PTF.SHZ. 2015-01-23T10:11:08.39 0.3 undecidable manual S 200 21.1677 116 0.08 72
IV.SEI.HHZ. 2015-01-23T10:11:07.47 0.3 undecidable manual S 121 18.4704 119 -0.01 73
IV.MTCR.EHZ. 2015-01-23T10:11:07.25 0.1 undecidable manual S 225 17.6712 120 0.03 98
IV.ZCCA.HHZ. 2015-01-23T10:11:06.76 0.6 positive manual P 328 27.5502 50 0.81 38
GU.POPM.HHZ. 2015-01-23T10:11:06.76 0.1 undecidable manual P 252 33.744 50 -0.14 93
IV.PTF.SHZ. 2015-01-23T10:11:04.96 0.1 negative manual P 200 21.1677 116 0.09 96
IV.SEI.HHZ. 2015-01-23T10:11:04.38 1.0 positive manual P 121 18.4704 119 -0.01 24
IV.MTCR.EHZ. 2015-01-23T10:11:04.44 0.1 positive manual P 225 17.6712 120 0.2 94
IV.FNVD.HHZ. 2015-01-23T10:11:03.73 0.1 undecidable manual S 317 4.2957 157 -0.26 95
IV.FNVD.HHZ. 2015-01-23T10:11:02.36 0.1 undecidable manual P 317 4.2957 157 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.POPM.HHE. ML:1.8 0.000262 0.1 AML other m 2015-01-23T10:11:12.28
GU.POPM.HHN. ML:2.1 0.0004885 0.16 AML other m 2015-01-23T10:11:12.23
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download