Earthquake with magnitude of ML 1.6 on date 24-03-2015 and time 20:35:35 (UTC) in region 4 km W Gaggio Montano (BO)

A magnitude ML 1.6 earthquake occured in region: 4 km W Gaggio Montano (BO), on

  • 24-03-2015 20:35:35 (UTC)
  • 24-03-2015 21:35:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2000, 10.8910 at 9 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
Gaggio Montano BO 4 4878 4878
Lizzano in Belvedere BO 4 2212 7090
Fanano MO 8 2989 10079
Alto Reno Terme BO 8 6960 17039
Montese MO 9 3353 20392
Sestola MO 10 2508 22900
Castel di Casio BO 12 3448 26348
Castel d'Aiano BO 13 1906 28254
Sambuca Pistoiese PT 14 1626 29880
Montecreto MO 15 940 30820
Cutigliano PT 15 1488 32308
Camugnano BO 16 1885 34193
Pavullo nel Frignano MO 16 17383 51576
Lama Mocogno MO 18 2734 54310
San Marcello Pistoiese PT 18 6416 60726
Zocca MO 18 4719 65445
Abetone PT 19 621 66066
Riolunato MO 19 712 66778
Fiumalbo MO 20 1280 68058

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of Pistoia (90315 inhabitants)
39 Km NW of Prato (191150 inhabitants)
49 Km SW of Bologna (386663 inhabitants)
50 Km S of Modena (184973 inhabitants)
50 Km NE of Lucca (89046 inhabitants)
54 Km NW of Scandicci (50609 inhabitants)
56 Km NW of Firenze (382808 inhabitants)
59 Km SE of Reggio nell'Emilia (171345 inhabitants)
62 Km E of Massa (69479 inhabitants)
63 Km NE of Viareggio (62467 inhabitants)
65 Km E of Carrara (63133 inhabitants)
65 Km S of Carpi (70699 inhabitants)
67 Km NE of Pisa (89158 inhabitants)
68 Km W of Imola (69797 inhabitants)
80 Km W of Faenza (58541 inhabitants)
80 Km SE of Parma (192836 inhabitants)
85 Km E of La Spezia (93959 inhabitants)
86 Km NE of Livorno (159219 inhabitants)
91 Km SW of Ferrara (133155 inhabitants)
92 Km W of Forlì (117913 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 1.6 2015-03-24
20:35:35
44.1998 10.8912 9 2015-10-19
09:27:47
Bollettino Sismico Italiano INGV 20011241
Reviewed
Rev100
ML 1.7 2015-03-24
20:35:35
44.2125 10.8883 7 2015-03-24
20:44:28
Sala Sismica INGV-Roma 17977451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-03-24 20:35:35 ± 0.1
Latitude 44.1998 ± 0.0054
Longitude 10.8912 ± 0.0075
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 20011241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 565
Semi-minor axis of confidence ellipse (meter) 395
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 314
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.16278
Epicentral distance of station farthest from the epicenter (degree) 0.54589
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 3
Type of magnitude ML
Reference to an origin 17977451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-03-24 20:44:28

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 20011241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-06-30 15:13:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTRZ.HHE. 2015-03-24T20:35:50.54 0.1 undecidable manual S 73 44.2224 50 0.04 95
IV.PII.HHZ. 2015-03-24T20:35:46.45 0.1 negative manual P 209 60.5949 50 -0.31 87
IV.BDI.HHZ. 2015-03-24T20:35:45.80 0.3 undecidable manual S 237 28.0497 107 -0.06 73
IV.MTRZ.HHE. 2015-03-24T20:35:44.68 0.1 undecidable manual P 73 44.2224 50 0.44 88
IV.ERBM.EHZ. 2015-03-24T20:35:44.31 0.1 undecidable manual P 303 45.1215 50 -0.07 94
IV.MTCR.EHZ. 2015-03-24T20:35:43.60 0.3 undecidable manual S 155 21.0678 112 0.04 74
GU.POPM.HHZ. 2015-03-24T20:35:43.90 0.3 undecidable manual S 212 20.2686 113 0.59 65
IV.ZCCA.HHZ. 2015-03-24T20:35:42.45 0.1 undecidable manual S 22 18.0708 115 -0.17 97
IV.FNVD.HHE. 2015-03-24T20:35:42.87 0.1 undecidable manual S 101 18.7701 115 0.02 100
IV.BDI.HHZ. 2015-03-24T20:35:41.28 0.1 undecidable manual P 237 28.0497 107 -0.28 93
GU.POPM.HHZ. 2015-03-24T20:35:40.22 0.1 positive manual P 212 20.2686 113 0.13 98
IV.ZCCA.HHZ. 2015-03-24T20:35:40.12 0.1 positive manual P 22 18.0708 115 0.42 92
IV.MTCR.EHZ. 2015-03-24T20:35:40.13 0.1 undecidable manual P 155 21.0678 112 -0.1 98
IV.FNVD.HHE. 2015-03-24T20:35:39.35 0.1 undecidable manual P 101 18.7701 115 -0.47 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.POPM.HHN. ML:1.8 0.00043400000000000003 0.18 AML other m 2015-03-24T20:35:44.09
GU.POPM.HHE. ML:1.8 0.00044750000000000004 0.22 AML other m 2015-03-24T20:35:44.37
IV.ZCCA.HNN. ML:1.6 0.000316 0.18 AML other m 2015-03-24T20:35:40.46
IV.ZCCA.HNE. ML:1.5 0.0002725 0.36 AML other m 2015-03-24T20:35:45.74
IV.ZCCA.HHE. ML:1.4 0.0002205 0.18 AML other m 2015-03-24T20:35:40.63
IV.ZCCA.HHN. ML:1.6 0.000309 0.16 AML other m 2015-03-24T20:35:40.46
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