Earthquake with magnitude of ML 2.1 on date 05-02-2009 and time 05:23:17 (Italy) in region 3 km N Tresana (MS)

A magnitude ML 2.1 earthquake occured in region: 3 km N Tresana (MS), on

  • 05-02-2009 04:23:17 (UTC)
  • 05-02-2009 05:23:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2640, 9.9620 at 10 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
Tresana MS 3 2044 2044
Villafranca in Lunigiana MS 3 4770 6814
Aulla MS 6 11263 18077
Licciana Nardi MS 6 4949 23026
Bagnone MS 6 1887 24913
Podenzana MS 7 2180 27093
Mulazzo MS 8 2424 29517
Filattiera MS 8 2309 31826
Bolano SP 10 7813 39639
Calice al Cornoviglio SP 10 1138 40777
Santo Stefano di Magra SP 12 9360 50137
Fivizzano MS 13 7925 58062
Follo SP 14 6337 64399
Pontremoli MS 14 7357 71756
Comano MS 14 714 72470
Vezzano Ligure SP 15 7356 79826
Fosdinovo MS 15 4883 84709
Rocchetta di Vara SP 16 703 85412
Sarzana SP 17 21976 107388
Beverino SP 17 2429 109817
Arcola SP 17 10607 120424
Zignago SP 17 532 120956
Casola in Lunigiana MS 18 988 121944
Zeri MS 19 1094 123038
Castelnuovo Magra SP 19 8415 131453
Brugnato SP 19 1270 132723
Borghetto di Vara SP 20 938 133661
Riccò del Golfo di Spezia SP 20 3698 137359

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of La Spezia (93959 inhabitants)
23 Km NW of Carrara (63133 inhabitants)
29 Km NW of Massa (69479 inhabitants)
50 Km NW of Viareggio (62467 inhabitants)
64 Km NW of Lucca (89046 inhabitants)
67 Km SW of Parma (192836 inhabitants)
70 Km NW of Pisa (89158 inhabitants)
72 Km SW of Reggio nell'Emilia (171345 inhabitants)
83 Km E of Genova (586655 inhabitants)
84 Km NW of Livorno (159219 inhabitants)
85 Km W of Pistoia (90315 inhabitants)
88 Km W of Modena (184973 inhabitants)
90 Km S of Piacenza (102191 inhabitants)
93 Km SW of Carpi (70699 inhabitants)
97 Km S of Cremona (71901 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 2.1
ML 2.1
2009-02-05
04:23:17
44.264 9.962 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 742189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-05 04:23:17 ± 0.08
Latitude 44.2640 ± 0.0072
Longitude 9.9620 ± 0.0063
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 742189

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 895
Semi-minor axis of confidence ellipse (meter) 421
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 943.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.32196
Epicentral distance of station farthest from the epicenter (degree) 0.67629
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 742189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:02:12

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 742189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:02:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.MAIM.HHE. 2009-02-05T04:23:35.44 0.1 undecidable manual Sg 132 57.2982 0.075 97
IV.BDI.HHN. 2009-02-05T04:23:34.72 0.3 undecidable manual Sg 114 55.3002 -0.094 73
IV.ERBM.EHZ. 2009-02-05T04:23:30.92 0.1 undecidable manual Sg 64 39.7269 0.262 96
IV.PII.SHZ. 2009-02-05T04:23:30.87 0.1 positive manual Pg 143 75.0693 0.381 88
MN.VLC.HHE. 2009-02-05T04:23:29.34 0.3 undecidable manual Sg 109 35.742 -0.247 73
GU.SC2M.HHZ. 2009-02-05T04:23:29.88 0.1 undecidable manual Sg 295 37.3293 -0.141 99
GU.MAIM.HHE. 2009-02-05T04:23:27.83 0.1 undecidable manual Pg 132 57.2982 0.075 97
IV.BDI.HHN. 2009-02-05T04:23:27.32 0.1 undecidable manual Pg 114 55.3002 -0.117 96
MN.VLC.HHE. 2009-02-05T04:23:24.11 0.1 undecidable manual Pg 109 35.742 -0.309 96
GU.SC2M.HHZ. 2009-02-05T04:23:24.80 0.1 positive manual Pg 295 37.3293 0.13 99
IV.ERBM.EHZ. 2009-02-05T04:23:24.97 0.1 undecidable manual Pg 64 39.7269 -0.068 100
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
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