Earthquake with magnitude of ML 1.9 on date 13-10-2009 and time 16:56:30 (Italy) in region 4 km E Mallare (SV)

A magnitude ML 1.9 earthquake occured in region: 4 km E Mallare (SV), on

  • 13-10-2009 14:56:30 (UTC)
  • 13-10-2009 16:56:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2780, 8.3480 at 11 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
Mallare SV 4 1146 1146
Quiliano SV 5 7232 8378
Vezzi Portio SV 6 809 9187
Altare SV 6 2108 11295
Orco Feglino SV 7 890 12185
Vado Ligure SV 7 8336 20521
Spotorno SV 8 3803 24324
Pallare SV 8 923 25247
Bergeggi SV 8 1129 26376
Rialto SV 9 564 26940
Calice Ligure SV 9 1730 28670
Bormida SV 9 387 29057
Noli SV 10 2736 31793
Carcare SV 10 5587 37380
Savona SV 11 61345 98725
Osiglia SV 12 444 99169
Finale Ligure SV 12 11711 110880
Plodio SV 12 650 111530
Magliolo SV 12 974 112504
Tovo San Giacomo SV 13 2582 115086
Borgio Verezzi SV 14 2205 117291
Cosseria SV 14 1105 118396
Albissola Marina SV 14 5487 123883
Giustenice SV 14 977 124860
Albisola Superiore SV 15 10163 135023
Millesimo SV 15 3383 138406
Cairo Montenotte SV 15 13269 151675
Pietra Ligure SV 15 8992 160667
Murialdo SV 15 841 161508
Roccavignale SV 16 752 162260
Cengio SV 17 3563 165823
Celle Ligure SV 17 5237 171060
Stella SV 18 3009 174069
Loano SV 18 11407 185476
Boissano SV 19 2492 187968
Calizzano SV 19 1475 189443
Castelnuovo di Ceva CN 19 110 189553
Dego SV 19 1985 191538
Giusvalla SV 20 441 191979
Bardineto SV 20 756 192735
Borghetto Santo Spirito SV 20 4948 197683
Montezemolo CN 20 259 197942
Pontinvrea SV 20 847 198789

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km W of Savona (61345 inhabitants)
49 Km W of Genova (586655 inhabitants)
65 Km E of Cuneo (56081 inhabitants)
68 Km NE of Sanremo (54807 inhabitants)
70 Km S of Asti (76202 inhabitants)
74 Km SW of Alessandria (93943 inhabitants)
96 Km SE of Moncalieri (57294 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 1.6
ML 1.9
2009-10-13
14:56:30
44.278 8.348 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 978779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-10-13 14:56:30 ± 0.12
Latitude 44.2780 ± 0.0144
Longitude 8.3480 ± 0.0402
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 978779

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3895
Semi-minor axis of confidence ellipse (meter) 211
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 296
Circular confidence region, given by single value of horizontal uncertainty (meter) 3577.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29857
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 978779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:43:23

Md:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 978779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:43:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.DOI.HHE. 2009-10-13T14:57:01.86 10.0 undecidable manual Sg 0 0 0
IV.DOI.HHE. 2009-10-13T14:56:44.08 10.0 undecidable manual Pg 0 0 0
GU.PCP.HHE. 2009-10-13T14:56:41.83 0.1 undecidable manual Sg 28 33.1446 -0.209 93
GU.RORO.HHE. 2009-10-13T14:56:40.84 0.1 undecidable manual Sg 231 29.0487 -0.098 97
GU.PCP.HHE. 2009-10-13T14:56:37.25 0.1 undecidable manual Pg 28 33.1446 -0.012 97
GU.RORO.HHE. 2009-10-13T14:56:36.95 0.1 undecidable manual Pg 231 29.0487 0.322 91
GU.FINB.HHZ. 2009-10-13T14:56:36.54 0.6 undecidable manual Sg 189 11.2776 0.311 47
IV.QLNO.HHZ. 2009-10-13T14:56:34.87 0.1 undecidable manual Sg 358 5.1948 -0.108 100
IV.QLNO.HHZ. 2009-10-13T14:56:33.29 0.1 undecidable manual Pg 358 5.1948 0.102 100
GU.FINB.HHZ. 2009-10-13T14:56:33.54 0.1 undecidable manual Pg 189 11.2776 -0.369 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