Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 19-09-2015 and time 16:58:25 (UTC) in region 6 km NW Borgo Tossignano (BO)

A magnitude ML 2.5 earthquake occured in region: 6 km NW Borgo Tossignano (BO), on

  • 19-09-2015 16:58:25 (UTC)
  • 19-09-2015 18:58:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3220, 11.5510 at 22 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
Borgo Tossignano BO 6 3288 3288
Casalfiumanese BO 6 3438 6726
Fontanelice BO 7 1943 8669
Dozza BO 8 6652 15321
Castel San Pietro Terme BO 9 20811 36132
Monterenzio BO 12 6035 42167
Casola Valsenio RA 12 2617 44784
Castel del Rio BO 13 1246 46030
Imola BO 14 69797 115827
Riolo Terme RA 15 5720 121547
Ozzano dell'Emilia BO 15 13596 135143
Castel Guelfo di Bologna BO 16 4455 139598
Pianoro BO 18 17460 157058
Medicina BO 19 16739 173797
Loiano BO 19 4294 178091
Castel Bolognese RA 20 9554 187645

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km W of Imola (69797 inhabitants)
25 Km SE of Bologna (386663 inhabitants)
27 Km W of Faenza (58541 inhabitants)
41 Km W of Forlì (117913 inhabitants)
53 Km W of Ravenna (159116 inhabitants)
58 Km S of Ferrara (133155 inhabitants)
59 Km W of Cesena (96758 inhabitants)
61 Km NE of Prato (191150 inhabitants)
61 Km SE of Modena (184973 inhabitants)
66 Km NE of Firenze (382808 inhabitants)
66 Km NE of Pistoia (90315 inhabitants)
69 Km NE of Scandicci (50609 inhabitants)
74 Km SE of Carpi (70699 inhabitants)
84 Km E of Reggio nell'Emilia (171345 inhabitants)
86 Km S of Rovigo (51867 inhabitants)
86 Km W of Rimini (147750 inhabitants)
99 Km N of Arezzo (99543 inhabitants)
99 Km NE of Lucca (89046 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 2.5 2015-09-19
16:58:25		 44.3223 11.5508 22 2016-02-19
13:21:47		 Bollettino Sismico Italiano INGV 21754061
Reviewed
Rev100 		ML 2.4 2015-09-19
16:58:24		 44.3417 11.5563 23 2015-09-19
17:15:29		 Sala Sismica INGV-Roma 21475621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-09-19 16:58:25 ± 0.12
Latitude 44.3223 ± 0.0081
Longitude 11.5508 ± 0.0138
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 21754061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1122
Semi-minor axis of confidence ellipse (meter) 558
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 103
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.69073
Number of stations at which the event was observed 41
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 21754061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-10-09 09:13:57

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 21475621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-09-19 17:15:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2015-09-19T17:00:09.99 3.0 undecidable manual Sn 0.11 0
IV.T0702.EHZ. 2015-09-19T17:00:08.85 3.0 undecidable manual Pg 21.23 0
GU.ENR.HHZ. 2015-09-19T16:59:51.99 3.0 undecidable manual Sn 3.25 0
OE.WTTA.HHZ. 2015-09-19T16:59:20.46 3.0 negative manual Pg 8.79 0
GU.RORO.HHZ. 2015-09-19T16:59:14.17 3.0 undecidable manual Pg 8.71 0
GU.MGRO.HHZ. 2015-09-19T16:59:08.05 3.0 negative manual Pn -0.04 0
CH.MUGIO.HHZ. 2015-09-19T16:59:04.77 3.0 negative manual Pn 0.52 0
SI.ABSI.HHZ. 2015-09-19T16:59:04.41 3.0 negative manual Pn -0.03 0
IV.ATPI.EHZ. 2015-09-19T16:59:00.37 0.3 undecidable manual S 145 118.2927 96 1.08 44
NI.SABO.HHZ. 2015-09-19T16:59:00.60 3.0 negative manual Pn -0.62 0
IV.STAL.HHZ. 2015-09-19T16:58:59.63 3.0 undecidable manual Pn -0.26 0
IV.TEOL.HHZ. 2015-09-19T16:58:59.05 0.3 undecidable manual S 5 115.6953 96 0.44 58
IV.PE3.EHZ. 2015-09-19T16:58:57.99 3.0 undecidable manual S 93.8394 2.31 0
IV.NARO.HHZ. 2015-09-19T16:58:57.99 3.0 undecidable manual S 0.06 0
IV.CSP1.EHZ. 2015-09-19T16:58:56.42 3.0 negative manual Pg 3.51 0
IV.ATMI.HHZ. 2015-09-19T16:58:56.99 3.0 undecidable manual S -2.78 0
IV.MOMA.HHZ. 2015-09-19T16:58:55.91 3.0 positive manual Pg 3.39 0
IV.APEC.HHZ. 2015-09-19T16:58:55.99 3.0 undecidable manual S -0.75 0
IV.CTI.HHZ. 2015-09-19T16:58:54.16 3.0 negative manual Pn -0.83 0
IV.PARC.HHZ. 2015-09-19T16:58:53.99 3.0 undecidable manual S 1.3 0
SI.LUSI.HHZ. 2015-09-19T16:58:53.83 0.1 undecidable manual P 346 187.6677 54 -0.27 61
IV.BADI.EHZ. 2015-09-19T16:58:53.99 3.0 undecidable manual S -1.8 0
NI.CGRP.HHZ. 2015-09-19T16:58:52.05 0.1 undecidable manual P 6 173.9925 54 -0.34 65
IV.CRE.HHZ. 2015-09-19T16:58:52.23 0.3 undecidable manual S 158 84.3489 99 1.92 28
IV.MGAB.HHZ. 2015-09-19T16:58:51.38 0.1 undecidable manual P 164 162.7149 54 0.38 69
ST.DOSS.HHZ. 2015-09-19T16:58:51.97 0.1 undecidable manual P 351 175.1913 54 -0.57 60
IV.SALO.HHZ. 2015-09-19T16:58:51.55 0.1 undecidable manual P 331 164.8128 54 0.3 69
IV.ROVR.HHZ. 2015-09-19T16:58:49.72 0.1 undecidable manual P 346 151.6371 54 0.11 77
IV.ATTE.HHZ. 2015-09-19T16:58:48.41 0.1 undecidable manual P 152 140.3484 54 0.2 77
IV.ATPI.EHZ. 2015-09-19T16:58:45.68 0.1 undecidable manual P 145 118.2927 96 0.83 66
IV.TEOL.HHZ. 2015-09-19T16:58:44.62 0.1 undecidable manual P 5 115.6953 96 0.17 82
IV.CAFI.HHZ. 2015-09-19T16:58:44.68 0.1 undecidable manual P 163 115.0959 96 0.32 79
IV.ASQU.HHZ. 2015-09-19T16:58:44.70 0.1 undecidable manual S 162 61.2942 103 0.43 86
GU.MAIM.HHZ. 2015-09-19T16:58:42.53 0.1 undecidable manual P 242 95.7264 98 1.13 61
IV.RUFI.EHZ. 2015-09-19T16:58:42.50 0.3 undecidable manual S 184 53.8017 105 0.17 69
IV.MPPT.EHZ. 2015-09-19T16:58:42.60 0.1 undecidable manual S 222 54.6009 105 0.08 94
IV.MTCR.EHZ. 2015-09-19T16:58:42.90 0.1 undecidable manual S 233 54.501 105 0.4 88
IV.SFI.EHZ. 2015-09-19T16:58:42.00 0.1 undecidable manual S 153 52.0035 105 0.15 93
IV.PE3.EHZ. 2015-09-19T16:58:41.78 3.0 positive manual P 93.8394 -0.27 0
IV.CRE.HHZ. 2015-09-19T16:58:39.55 0.1 undecidable manual P 158 84.3489 99 -0.11 88
IV.SEI.HHZ. 2015-09-19T16:58:36.70 0.1 undecidable manual S 207 33.4443 116 -0.5 89
IV.ASQU.HHZ. 2015-09-19T16:58:35.61 0.1 negative manual P 162 61.2942 103 -0.56 82
IV.LMD.HHZ. 2015-09-19T16:58:35.76 0.3 undecidable manual S 155 29.8479 119 -0.59 65
IV.MTCR.EHZ. 2015-09-19T16:58:34.84 0.1 undecidable manual P 233 54.501 105 -0.31 89
IV.IMOL.EHZ. 2015-09-19T16:58:34.29 0.3 undecidable manual S 75 15.7731 139 0.89 59
IV.SFI.EHZ. 2015-09-19T16:58:34.20 0.1 negative manual P 153 52.0035 105 -0.58 83
IV.RUFI.EHZ. 2015-09-19T16:58:34.35 0.1 undecidable manual P 184 53.8017 105 -0.7 79
IV.MPPT.EHZ. 2015-09-19T16:58:34.76 0.1 undecidable manual P 222 54.6009 105 -0.41 87
IV.BRIS.HHZ. 2015-09-19T16:58:34.10 0.1 undecidable manual S 122 20.2686 131 -0.15 98
IV.MTRZ.HHZ. 2015-09-19T16:58:33.63 0.3 undecidable manual S 264 10.0788 152 1.09 54
IV.SEI.HHZ. 2015-09-19T16:58:31.30 0.1 undecidable manual P 207 33.4443 116 -0.79 79
IV.IMOL.EHZ. 2015-09-19T16:58:30.00 0.1 undecidable manual P 75 15.7731 139 0.1 100
IV.LMD.HHZ. 2015-09-19T16:58:30.74 0.1 positive manual P 155 29.8479 119 -0.86 77
IV.MTRZ.HHZ. 2015-09-19T16:58:29.19 0.1 positive manual P 264 10.0788 152 -0.21 99
IV.BRIS.HHZ. 2015-09-19T16:58:29.91 0.1 positive manual P 122 20.2686 131 -0.48 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
SI.ABSI.HHN. ML:2.7 0.0000859 1.32 AML other m 2015-09-19T16:59:46.43
SI.ABSI.HHE. ML:2.8 0.00009715 0.48 AML other m 2015-09-19T16:59:47.19
IV.ASQU.HHE. ML:2.3 0.000386 1.38 AML other m 2015-09-19T16:58:45.89
IV.ASQU.HHN. ML:2.4 0.000517 0.32 AML other m 2015-09-19T16:58:45.72
IV.ATPI.EHE. ML:2.1 0.00008679999999999998 1.32 AML other m 2015-09-19T16:59:07.47
IV.ATPI.EHN. ML:2.0 0.00007505000000000001 0.42 AML other m 2015-09-19T16:59:11.00
IV.ATTE.HHE. ML:2.1 0.00007155 0.98 AML other m 2015-09-19T16:59:13.82
IV.ATTE.HHN. ML:2.2 0.000092 0.72 AML other m 2015-09-19T16:59:14.06
IV.BRIS.HHE. ML:2.1 0.0006619999999999999 0.84 AML other m 2015-09-19T16:58:34.33
IV.BRIS.HHN. ML:2.3 0.0010760000000000001 0.26 AML other m 2015-09-19T16:58:35.67
IV.CAFI.HHN. ML:2.2 0.0001135 0.3 AML other m 2015-09-19T16:59:02.57
IV.CAFI.HHE. ML:2.3 0.000154 0.46 AML other m 2015-09-19T16:59:04.88
NI.CGRP.HHE. ML:2.5 0.00011344999999999999 0.46 AML other m 2015-09-19T16:59:23.64
NI.CGRP.HHN. ML:2.4 0.00010449999999999999 0.66 AML other m 2015-09-19T16:59:25.26
IV.CRE.HHN. ML:2.4 0.0003435 0.32 AML other m 2015-09-19T16:58:58.55
IV.CRE.HHE. ML:2.3 0.0002605 0.52 AML other m 2015-09-19T16:58:59.54
IV.CTI.HHE. ML:2.7 0.0001465 0.18 AML other m 2015-09-19T16:59:17.15
IV.CTI.HHN. ML:2.7 0.000175 0.26 AML other m 2015-09-19T16:59:17.39
ST.DOSS.HHE. ML:2.7 0.00020050000000000002 0.54 AML other m 2015-09-19T16:59:17.34
ST.DOSS.HHN. ML:2.7 0.0002065 1.3 AML other m 2015-09-19T16:59:19.04
IV.IMOL.HNN. ML:2.4 0.001635 0.64 AML other m 2015-09-19T16:58:36.13
IV.IMOL.HNE. ML:2.5 0.00197 1.6 AML other m 2015-09-19T16:58:36.95
IV.LMD.HHN. ML:2.8 0.00229 0.62 AML other m 2015-09-19T16:58:36.89
IV.LMD.HHE. ML:2.6 0.001435 1.26 AML other m 2015-09-19T16:58:36.66
SI.LUSI.HHE. ML:2.6 0.00014700000000000002 0.4 AML other m 2015-09-19T16:59:23.27
SI.LUSI.HHN. ML:2.9 0.00027749999999999997 0.22 AML other m 2015-09-19T16:59:23.60
GU.MAIM.HHN. ML:1.9 0.00008235000000000001 0.42 AML other m 2015-09-19T16:58:59.01
GU.MAIM.HHE. ML:1.8 0.00006510000000000001 0.46 AML other m 2015-09-19T16:59:02.02
IV.MGAB.HNN. ML:2.3 0.0000901 1.5 AML other m 2015-09-19T16:59:15.13
IV.MGAB.HHN. ML:2.3 0.00008225 0.88 AML other m 2015-09-19T16:59:22.48
IV.MGAB.HHE. ML:2.5 0.000127 0.52 AML other m 2015-09-19T16:59:16.90
IV.MGAB.HNE. ML:2.4 0.00010980000000000001 0.48 AML other m 2015-09-19T16:59:16.91
GU.MGRO.HHN. ML:2.7 0.0000576 1.58 AML other m 2015-09-19T16:59:39.61
GU.MGRO.HHE. ML:2.4 0.000036200000000000006 1.58 AML other m 2015-09-19T17:00:22.08
IV.MOMA.HHE. ML:2.2 0.000047850000000000004 0.34 AML other m 2015-09-19T16:59:25.21
IV.MOMA.HHN. ML:2.1 0.00004245 1.58 AML other m 2015-09-19T16:59:22.48
IV.MPPT.EHN. ML:2.0 0.00022250000000000001 0.46 AML other m 2015-09-19T16:58:43.12
IV.MPPT.EHE. ML:2.1 0.00029400000000000004 1.4 AML other m 2015-09-19T16:58:44.44
IV.MTRZ.HHE. ML:2.6 0.002455 1.38 AML other m 2015-09-19T16:58:39.19
IV.MTRZ.HNE. ML:2.6 0.0023650000000000003 1.38 AML other m 2015-09-19T16:58:39.19
IV.MTRZ.HHN. ML:2.7 0.003165 0.62 AML other m 2015-09-19T16:58:35.48
IV.MTRZ.HNN. ML:2.7 0.0030600000000000002 0.62 AML other m 2015-09-19T16:58:35.17
CH.MUGIO.HHN. ML:2.4 0.00004195 0.6 AML other m 2015-09-19T16:59:54.94
CH.MUGIO.HHE. ML:2.2 0.00002395 0.92 AML other m 2015-09-19T16:59:45.32
IV.PE3.EHN. ML:2.8 0.000579 0.4 AML other m 2015-09-19T16:59:03.35
IV.PE3.EHE. ML:2.6 0.00038349999999999994 0.4 AML other m 2015-09-19T16:59:02.57
IV.PIEI.HHN. ML:2.2 0.0001315 0.32 AML other m 2015-09-19T16:59:02.54
IV.PIEI.HHE. ML:2.6 0.000314 0.1 AML other m 2015-09-19T16:59:02.56
IV.ROVR.HHN. ML:2.5 0.000154 0.74 AML other m 2015-09-19T16:59:12.96
IV.ROVR.HHE. ML:2.2 0.00008345 1.58 AML other m 2015-09-19T16:59:13.56
NI.SABO.HHE. ML:2.5 0.0000582 1.44 AML other m 2015-09-19T16:59:44.85
NI.SABO.HHN. ML:2.6 0.00007795 0.42 AML other m 2015-09-19T16:59:47.93
IV.SALO.HHN. ML:2.7 0.000199 1.52 AML other m 2015-09-19T16:59:22.92
IV.SALO.HHE. ML:2.6 0.00018449999999999999 1.12 AML other m 2015-09-19T16:59:16.95
IV.SEI.HHN. ML:3.1 0.00479 1.22 AML other m 2015-09-19T16:58:37.80
IV.SEI.HHE. ML:2.7 0.00195 1.16 AML other m 2015-09-19T16:58:39.26
IV.SFI.EHN. ML:2.3 0.000518 0.52 AML other m 2015-09-19T16:58:42.67
IV.SFI.EHE. ML:2.3 0.00041200000000000004 0.48 AML other m 2015-09-19T16:58:45.81
IV.STAL.HHN. ML:2.6 0.0000892 0.8 AML other m 2015-09-19T16:59:27.76
IV.STAL.HHE. ML:2.7 0.00010195 0.32 AML other m 2015-09-19T16:59:38.38
IV.TEOL.HHE. ML:2.9 0.000648 1.14 AML other m 2015-09-19T16:59:03.53
IV.TEOL.HHN. ML:2.7 0.00041049999999999995 0.36 AML other m 2015-09-19T16:59:05.16
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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