Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 14-09-2015 and time 15:46:28 (Italy) in region 2 km E Monghidoro (BO)

A magnitude ML 1.7 earthquake occured in region: 2 km E Monghidoro (BO), on

  • 14-09-2015 13:46:28 (UTC)
  • 14-09-2015 15:46:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2250, 11.3400 at 23 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
Monghidoro BO 2 3749 3749
Loiano BO 5 4294 8043
Monzuno BO 8 6328 14371
San Benedetto Val di Sambro BO 9 4315 18686
Firenzuola FI 12 4726 23412
Monterenzio BO 12 6035 29447
Castel del Rio BO 13 1246 30693
Grizzana Morandi BO 15 3916 34609
Marzabotto BO 17 6779 41388
Castiglione dei Pepoli BO 17 5648 47036
Fontanelice BO 18 1943 48979
Pianoro BO 18 17460 66439
Vergato BO 19 7639 74078

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km S of Bologna (386663 inhabitants)
33 Km W of Imola (69797 inhabitants)
43 Km NE of Prato (191150 inhabitants)
44 Km W of Faenza (58541 inhabitants)
47 Km NE of Pistoia (90315 inhabitants)
51 Km N of Firenze (382808 inhabitants)
53 Km N of Scandicci (50609 inhabitants)
56 Km W of Forlì (117913 inhabitants)
57 Km SE of Modena (184973 inhabitants)
72 Km SW of Ferrara (133155 inhabitants)
72 Km W of Ravenna (159116 inhabitants)
72 Km SE of Carpi (70699 inhabitants)
73 Km W of Cesena (96758 inhabitants)
77 Km SE of Reggio nell'Emilia (171345 inhabitants)
79 Km NE of Lucca (89046 inhabitants)
94 Km NE of Pisa (89158 inhabitants)
95 Km NW of Arezzo (99543 inhabitants)
96 Km E of Viareggio (62467 inhabitants)
98 Km E of Massa (69479 inhabitants)
100 Km W of Rimini (147750 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 1.7 2015-09-14
13:46:28		 44.225 11.3402 23 2016-02-19
13:21:47		 Bollettino Sismico Italiano INGV 22494991
Reviewed
Rev100 		ML 1.6 2015-09-14
13:46:29		 44.1962 11.3478 8 2015-09-14
13:53:13		 Sala Sismica INGV-Roma 21382441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-09-14 13:46:28 ± 0.26
Latitude 44.2250 ± 0.0081
Longitude 11.3402 ± 0.0113
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 22494991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1009
Semi-minor axis of confidence ellipse (meter) 156
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53600
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 22494991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-01-21 14:15:26

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 21382441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-09-14 13:53:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.RISI.HHZ. 2015-09-14T13:47:51.99 3.0 undecidable manual Sg 5.42 0
IV.LATB.EHZ. 2015-09-14T13:47:50.99 3.0 undecidable manual Sn -0.23 0
SI.ROSI.HHZ. 2015-09-14T13:47:49.99 3.0 undecidable manual Sg 4.32 0
SI.ABSI.HHZ. 2015-09-14T13:47:39.99 3.0 undecidable manual Sn -1.03 0
IV.OVO.HHZ. 2015-09-14T13:47:33.62 3.0 negative manual Pn 3.59 0
IV.PTRJ.HHZ. 2015-09-14T13:47:26.44 3.0 undecidable manual Pn 1.6 0
ST.RONC.HNZ. 2015-09-14T13:47:23.99 3.0 undecidable manual Sn -0.43 0
IV.VOBA.HNZ. 2015-09-14T13:46:55.65 3.0 undecidable manual Pn -0.1 0
IV.TREG.HNZ. 2015-09-14T13:46:53.36 3.0 negative manual P 0.83 0
IV.ASQU.HHZ. 2015-09-14T13:46:48.12 0.6 undecidable manual S 143 59.496 104 0.43 44
IV.SFI.EHZ. 2015-09-14T13:46:46.51 0.3 undecidable manual S 131 53.8017 106 0.29 68
IV.RUFI.EHZ. 2015-09-14T13:46:44.20 0.6 undecidable manual S 162 45.0216 110 0.21 48
IV.BRIS.HHZ. 2015-09-14T13:46:42.00 0.3 undecidable manual S 90 33.9438 117 0.74 60
IV.MTCR.EHZ. 2015-09-14T13:46:41.51 0.6 undecidable manual S 231 34.6431 117 0.07 50
IV.MPPT.EHN. 2015-09-14T13:46:41.79 0.6 undecidable manual S 214 35.742 116 0.09 50
IV.LMD.HHZ. 2015-09-14T13:46:40.76 0.3 undecidable manual S 119 33.5442 118 -0.41 71
IV.ASQU.HHZ. 2015-09-14T13:46:39.65 0.1 undecidable manual P 143 59.496 104 -0.12 95
IV.SFI.EHZ. 2015-09-14T13:46:38.75 0.1 positive manual P 131 53.8017 106 -0.17 96
IV.RUFI.EHZ. 2015-09-14T13:46:37.42 0.3 undecidable manual P 162 45.0216 110 -0.21 72
IV.BRIS.HHZ. 2015-09-14T13:46:36.06 0.1 positive manual P 90 33.9438 117 0 100
IV.MTRZ.HHZ. 2015-09-14T13:46:36.96 0.3 undecidable manual S 35 11.877 149 0.1 77
IV.ZCCA.HNN. 2015-09-14T13:46:36.27 0.3 undecidable manual P 296 32.0457 119 0.46 70
IV.MTCR.EHZ. 2015-09-14T13:46:36.58 0.1 undecidable manual P 231 34.6431 117 0.42 94
IV.MPPT.EHN. 2015-09-14T13:46:36.16 0.3 undecidable manual P 214 35.742 116 -0.15 73
IV.LMD.HHZ. 2015-09-14T13:46:35.45 0.1 undecidable manual P 119 33.5442 118 -0.55 91
IV.MTRZ.HHZ. 2015-09-14T13:46:33.12 0.1 negative manual P 35 11.877 149 -0.39 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:1.5 0.0000592 0.22 AML other m 2015-09-14T13:46:48.66
IV.ASQU.HHN. ML:1.6 0.0000694 0.24 AML other m 2015-09-14T13:46:49.10
IV.BRIS.HHN. ML:2.1 0.00042500000000000003 0.88 AML other m 2015-09-14T13:46:43.73
IV.BRIS.HHE. ML:1.9 0.0002755 0.28 AML other m 2015-09-14T13:46:43.84
IV.LMD.HHE. ML:1.8 0.0002345 0.16 AML other m 2015-09-14T13:46:40.98
IV.LMD.HHN. ML:1.7 0.00018449999999999999 1.5 AML other m 2015-09-14T13:46:42.03
IV.MTCR.EHN. ML:1.6 0.00011965000000000001 0.24 AML other m 2015-09-14T13:46:42.51
IV.MTCR.EHE. ML:1.6 0.000135 0.42 AML other m 2015-09-14T13:46:42.71
IV.MTRZ.HHE. ML:2.0 0.000641 0.3 AML other m 2015-09-14T13:46:37.65
IV.MTRZ.HHN. ML:2.1 0.000861 1.26 AML other m 2015-09-14T13:46:38.20
IV.RUFI.EHN. ML:1.4 0.00007499999999999995 1.58 AML other m 2015-09-14T13:46:48.50
IV.RUFI.EHE. ML:1.5 0.00008299999999999998 1.58 AML other m 2015-09-14T13:47:35.06
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