Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 06-10-2015 and time 04:47:25 (Italy) in region 1 km S Fontanigorda (GE)

A magnitude ML 1.8 earthquake occured in region: 1 km S Fontanigorda (GE), on

  • 06-10-2015 02:47:25 (UTC)
  • 06-10-2015 04:47:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5420, 9.3050 at 8 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
Fontanigorda GE 1 277 277
Rovegno GE 5 554 831
Montebruno GE 5 240 1071
Fascia GE 6 81 1152
Rezzoaglio GE 7 995 2147
Gorreto GE 7 97 2244
Rondanina GE 7 62 2306
Ottone PC 9 516 2822
Propata GE 10 142 2964
Favale di Malvaro GE 11 466 3430
Santo Stefano d'Aveto GE 12 1126 4556
Torriglia GE 12 2311 6867
Lorsica GE 12 468 7335
Neirone GE 13 916 8251
Carrega Ligure AL 13 84 8335
Zerba PC 14 77 8412
Borzonasca GE 15 2049 10461
Orero GE 15 565 11026
Moconesi GE 15 2614 13640
Cerignale PC 16 127 13767
Cicagna GE 16 2502 16269
Tribogna GE 16 614 16883
Coreglia Ligure GE 17 285 17168
Lumarzo GE 17 1535 18703
Uscio GE 18 2284 20987
Mezzanego GE 19 1537 22524
San Colombano Certenoli GE 19 2683 25207
Valbrevenna GE 19 798 26005
Davagna GE 19 1884 27889
Ferriere PC 19 1294 29183
Corte Brugnatella PC 20 586 29769

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Genova (586655 inhabitants)
64 Km NW of La Spezia (93959 inhabitants)
65 Km SW of Piacenza (102191 inhabitants)
68 Km SE of Alessandria (93943 inhabitants)
70 Km E of Savona (61345 inhabitants)
73 Km S of Pavia (72576 inhabitants)
82 Km NW of Carrara (63133 inhabitants)
86 Km W of Parma (192836 inhabitants)
87 Km SW of Cremona (71901 inhabitants)
87 Km NW of Massa (69479 inhabitants)
93 Km SE of Vigevano (63310 inhabitants)
96 Km E of Asti (76202 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 1.8 2015-10-06
02:47:25		 44.5423 9.3052 8 2016-02-19
13:22:16		 Bollettino Sismico Italiano INGV 23062111
Reviewed
Rev100 		ML 1.8 2015-10-06
02:47:25		 44.5423 9.3052 8 2015-10-06
02:59:48		 Sala Sismica INGV-Roma 21712181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-10-06 02:47:25 ± 0.07
Latitude 44.5423 ± 0.0045
Longitude 9.3052 ± 0.0063
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 23062111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 475
Semi-minor axis of confidence ellipse (meter) 394
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 36
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.19880
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.6
Num. used stations 5
Type of magnitude ML
Reference to an origin 23062111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-01-13 10:30:54

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 21712181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-10-06 02:59:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
NI.VARN.HHZ. 2015-10-06T02:48:04.99 3.0 undecidable manual Pn -0.92 0
IV.PLMA.HHZ. 2015-10-06T02:47:47.47 0.6 undecidable manual S 141 69.8745 50 0.29 44
IV.PII.HHZ. 2015-10-06T02:47:47.90 1.0 undecidable manual P 133 133.0668 50 0.22 20
GU.GRAM.HHZ. 2015-10-06T02:47:44.70 0.6 undecidable manual S 95 60.3951 50 0.04 47
GU.PCP.HHZ. 2015-10-06T02:47:44.52 0.6 undecidable manual S 270 60.0954 50 -0.05 47
IV.QLNO.HHZ. 2015-10-06T02:47:38.83 1.0 undecidable manual P 253 79.7646 50 -0.63 20
IV.PLMA.HHZ. 2015-10-06T02:47:37.73 0.6 undecidable manual P 141 69.8745 50 -0.2 45
GU.PCP.HHZ. 2015-10-06T02:47:36.44 0.1 undecidable manual P 270 60.0954 50 0.01 95
GU.GRAM.HHZ. 2015-10-06T02:47:36.60 0.3 undecidable manual P 95 60.3951 50 0.12 70
IV.MSSA.HHZ. 2015-10-06T02:47:35.84 0.6 undecidable manual S 146 30.1476 104 -0.28 47
IV.BOB.HHZ. 2015-10-06T02:47:34.89 0.6 undecidable manual S 24 27.4503 106 -0.31 47
IV.MSSA.HHZ. 2015-10-06T02:47:31.57 0.1 positive manual P 146 30.1476 104 0.02 100
IV.BOB.HHZ. 2015-10-06T02:47:30.91 0.1 positive manual P 24 27.4503 106 -0.11 99
GU.GORR.HHZ. 2015-10-06T02:47:29.02 0.6 undecidable manual S 352 7.2927 137 0.05 52
GU.GORR.HHZ. 2015-10-06T02:47:27.71 0.1 negative manual P 352 7.2927 137 0.29 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BOB.HHN. ML:1.8 0.0003185 0.98 AML other m 2015-10-06T02:47:35.50
IV.BOB.HHE. ML:1.7 0.0002945 0.28 AML other m 2015-10-06T02:47:36.08
IV.BOB.HNE. ML:5.4 1.2585 1.58 AML other m 2015-10-06T02:47:38.41
IV.BOB.HNN. ML:5.4 1.2605 1.58 AML other m 2015-10-06T02:47:38.41
GU.GORR.HHE. ML:2.7 0.00851 0.12 AML other m 2015-10-06T02:47:29.07
GU.GORR.HHN. ML:2.4 0.00455 0.12 AML other m 2015-10-06T02:47:29.28
GU.GRAM.HHN. ML:1.8 0.00014050000000000003 0.78 AML other m 2015-10-06T02:47:47.56
GU.GRAM.HHE. ML:1.8 0.000134 0.2 AML other m 2015-10-06T02:47:48.47
IV.MSSA.HHN. ML:1.6 0.0002045 0.24 AML other m 2015-10-06T02:47:36.39
IV.MSSA.HHE. ML:1.7 0.0002235 0.54 AML other m 2015-10-06T02:47:36.68
IV.QLNO.HHN. ML:1.6 0.000051949999999999996 1.58 AML other m 2015-10-06T02:47:52.33
IV.QLNO.HHE. ML:1.5 0.00004339999999999999 0.14 AML other m 2015-10-06T02:47:52.95
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