Earthquake with magnitude of ML 1.3 on date 16-04-2015 and time 21:11:54 (Italy) in region 3 km NW Alto Reno Terme (BO)

A magnitude ML 1.3 earthquake occured in region: 3 km NW Alto Reno Terme (BO), on

  • 16-04-2015 19:11:54 (UTC)
  • 16-04-2015 21:11:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1770, 10.9620 at 23 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
Alto Reno Terme BO 3 6960 6960
Gaggio Montano BO 3 4878 11838
Lizzano in Belvedere BO 6 2212 14050
Castel di Casio BO 6 3448 17498
Sambuca Pistoiese PT 9 1626 19124
Camugnano BO 10 1885 21009
Montese MO 10 3353 24362
Castel d'Aiano BO 12 1906 26268
Fanano MO 14 2989 29257
Castiglione dei Pepoli BO 16 5648 34905
Sestola MO 16 2508 37413
Vergato BO 17 7639 45052
Grizzana Morandi BO 18 3916 48968
Cutigliano PT 18 1488 50456
Zocca MO 19 4719 55175
San Marcello Pistoiese PT 19 6416 61591

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Pistoia (90315 inhabitants)
35 Km NW of Prato (191150 inhabitants)
47 Km SW of Bologna (386663 inhabitants)
50 Km NW of Scandicci (50609 inhabitants)
51 Km NW of Firenze (382808 inhabitants)
52 Km NE of Lucca (89046 inhabitants)
52 Km S of Modena (184973 inhabitants)
63 Km W of Imola (69797 inhabitants)
64 Km SE of Reggio nell'Emilia (171345 inhabitants)
66 Km NE of Viareggio (62467 inhabitants)
67 Km E of Massa (69479 inhabitants)
68 Km S of Carpi (70699 inhabitants)
68 Km NE of Pisa (89158 inhabitants)
70 Km E of Carrara (63133 inhabitants)
75 Km W of Faenza (58541 inhabitants)
86 Km SE of Parma (192836 inhabitants)
86 Km W of Forlì (117913 inhabitants)
87 Km NE of Livorno (159219 inhabitants)
90 Km SW of Ferrara (133155 inhabitants)
91 Km E of La Spezia (93959 inhabitants)
100 Km NW of Siena (53903 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
Reviewed
Rev100
ML 1.3 2015-04-16
19:11:54
44.1772 10.9617 23 2015-04-16
19:17:56
Sala Sismica INGV-Roma 18465161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-04-16 19:11:54 ± 0.64
Latitude 44.1772 ± 0.0126
Longitude 10.9617 ± 0.0301
Depth (km) 23 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 18465161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1922
Semi-minor axis of confidence ellipse (meter) 1449
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 1920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.19785
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 18465161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-04-16 19:17:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IFIL.HHZ. 2015-04-16T19:13:16.88 3.0 negative manual Pn -5.63 0
IV.FAGN.HHZ. 2015-04-16T19:13:06.99 3.0 undecidable manual Sn 1.03 0
IV.TOLF.HHZ. 2015-04-16T19:12:57.99 3.0 undecidable manual Sn 1.8 0
RD.PGF.BHZ. 2015-04-16T19:12:55.99 3.0 undecidable manual Sn -0.71 0
IV.RMP.HHZ. 2015-04-16T19:12:36.32 3.0 negative manual Pn 2.51 0
IV.APEC.HHZ. 2015-04-16T19:12:27.99 3.0 undecidable manual Sn -0.84 0
IV.MMUR.HNZ. 2015-04-16T19:12:26.25 3.0 undecidable manual Pg 7.57 0
IV.EUCT.HNZ. 2015-04-16T19:12:25.66 3.0 undecidable manual Pg 4.22 0
IV.CPGN.EHZ. 2015-04-16T19:12:12.87 3.0 undecidable manual Pg 2.45 0
IV.IMOL.HNZ. 2015-04-16T19:12:10.99 3.0 undecidable manual Sn -0.4 0
GU.POPM.HHZ. 2015-04-16T19:12:03.32 0.1 undecidable manual S 228 21.9669 131 -0.5 86
IV.ZCCA.HHZ. 2015-04-16T19:12:03.62 0.1 undecidable manual S 3 19.2696 135 0.31 91
IV.MTCR.EHZ. 2015-04-16T19:12:03.20 0.1 undecidable manual S 169 16.872 139 0.34 93
IV.FNVD.HHE. 2015-04-16T19:12:01.63 0.1 undecidable manual S 95 12.876 147 -0.59 91
IV.ZCCA.HHZ. 2015-04-16T19:11:59.33 0.1 positive manual P 3 19.2696 135 -0.12 96
IV.MTCR.EHZ. 2015-04-16T19:11:59.56 0.1 negative manual P 169 16.872 139 0.37 94
GU.POPM.HHZ. 2015-04-16T19:11:59.65 0.1 positive manual P 228 21.9669 131 -0.09 94
IV.FNVD.HHE. 2015-04-16T19:11:58.86 0.1 undecidable manual P 95 12.876 147 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTCR.EHN. ML:1.0 0.000052500000000000016 1.58 AML other m 2015-04-16T19:11:57.64
IV.MTCR.EHE. ML:1.2 0.00009650000000000003 1.58 AML other m 2015-04-16T19:12:53.39
GU.POPM.HHE. ML:1.5 0.000142 0.18 AML other m 2015-04-16T19:12:03.91
GU.POPM.HHN. ML:1.3 0.0001041 0.16 AML other m 2015-04-16T19:12:03.72
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