Earthquake with magnitude of ML 1.8 on date 02-10-2011 and time 22:11:42 (UTC) in region 6 km SW Ferriere (PC)

A magnitude ML 1.8 earthquake occured in region: 6 km SW Ferriere (PC), on

  • 02-10-2011 22:11:42 (UTC)
  • 03-10-2011 00:11:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6020, 9.4600 at 16 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
Ferriere PC 6 1294 1294
Santo Stefano d'Aveto GE 6 1126 2420
Rezzoaglio GE 10 995 3415
Ottone PC 10 516 3931
Cerignale PC 12 127 4058
Gorreto GE 13 97 4155
Fontanigorda GE 14 277 4432
Corte Brugnatella PC 14 586 5018
Rovegno GE 15 554 5572
Farini PC 15 1290 6862
Zerba PC 15 77 6939
Coli PC 16 879 7818
Bedonia PR 17 3482 11300
Fascia GE 18 81 11381
Tornolo PR 18 1010 12391
Montebruno GE 19 240 12631
Bobbio PC 19 3577 16208
Rondanina GE 20 62 16270
Compiano PR 20 1112 17382

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km E of Genova (586655 inhabitants)
53 Km SW of Piacenza (102191 inhabitants)
62 Km NW of La Spezia (93959 inhabitants)
69 Km SE of Pavia (72576 inhabitants)
72 Km W of Parma (192836 inhabitants)
74 Km SW of Cremona (71901 inhabitants)
75 Km E of Alessandria (93943 inhabitants)
77 Km NW of Carrara (63133 inhabitants)
83 Km NW of Massa (69479 inhabitants)
84 Km E of Savona (61345 inhabitants)
93 Km SE of Vigevano (63310 inhabitants)
93 Km W of Reggio nell'Emilia (171345 inhabitants)
99 Km S of Milano (1345851 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
Md 2.2
ML 1.8
2011-10-02
22:11:42
44.602 9.46 16 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1293409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-10-02 22:11:42 ± 0.19
Latitude 44.6020 ± 0.0054
Longitude 9.4600 ± 0.0114
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1293409

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 729
Semi-minor axis of confidence ellipse (meter) 666
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 1081.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
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) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.91461
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 1293409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:37:20

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1293409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:37:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.FINB.HHZ. 2011-10-02T22:12:13.06 0.1 undecidable manual Sg 243 101.5206 0.466 80
IV.QLNO.HHE. 2011-10-02T22:12:10.39 0.1 undecidable manual Sg 251 93.4398 -0.047 86
GU.PCP.HHZ. 2011-10-02T22:12:04.39 0.1 undecidable manual Sg 265 72.5718 -0.502 82
IV.PLMA.HHN. 2011-10-02T22:12:03.82 0.1 undecidable manual Sg 153 68.7756 -0.054 91
GU.FINB.HHZ. 2011-10-02T22:12:00.25 0.1 undecidable manual Pg 243 101.5206 0.165 84
IV.QLNO.HHE. 2011-10-02T22:11:59.27 0.1 undecidable manual Pg 251 93.4398 0.435 81
IV.ROM9.HHN. 2011-10-02T22:11:55.25 10.0 undecidable manual Pg 0 0 0
IV.PLMA.HHN. 2011-10-02T22:11:55.41 0.1 undecidable manual Pg 153 68.7756 0.357 86
GU.PCP.HHZ. 2011-10-02T22:11:55.49 0.1 undecidable manual Pg 265 72.5718 -0.144 89
IV.MSSA.HHE. 2011-10-02T22:11:53.96 0.1 undecidable manual Sg 172 32.0457 -0.226 93
GU.SC2M.HHN. 2011-10-02T22:11:51.77 0.1 undecidable manual Sg 165 22.755 -0.058 98
IV.BOB.HHZ. 2011-10-02T22:11:50.63 0.1 undecidable manual Sg 357 18.3705 -0.166 100
IV.MSSA.HHE. 2011-10-02T22:11:49.32 0.1 undecidable manual Pg 172 32.0457 -0.135 96
GU.SC2M.HHN. 2011-10-02T22:11:48.00 0.1 undecidable manual Pg 165 22.755 -0.096 98
IV.BOB.HHZ. 2011-10-02T22:11:47.50 0.1 undecidable manual Pg 357 18.3705 0 100
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