Earthquake with magnitude of ML 2.3 on date 21-03-2008 and time 23:18:34 (Italy) in region 3 km N Ameglia (SP)

A magnitude ML 2.3 earthquake occured in region: 3 km N Ameglia (SP), on

  • 21-03-2008 22:18:34 (UTC)
  • 21-03-2008 23:18:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0900, 9.9490 at 6 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
Ameglia SP 3 4365 4365
Sarzana SP 3 21976 26341
Lerici SP 3 10228 36569
Arcola SP 4 10607 47176
Castelnuovo Magra SP 6 8415 55591
Ortonovo SP 8 8277 63868
Fosdinovo MS 8 4883 68751
Vezzano Ligure SP 8 7356 76107
Santo Stefano di Magra SP 9 9360 85467
Portovenere SP 10 3630 89097
La Spezia SP 10 93959 183056
Follo SP 11 6337 189393
Bolano SP 12 7813 197206
Carrara MS 12 63133 260339
Podenzana MS 13 2180 262519
Aulla MS 14 11263 273782
Riccò del Golfo di Spezia SP 17 3698 277480
Massa MS 17 69479 346959
Tresana MS 17 2044 349003
Riomaggiore SP 17 1576 350579
Beverino SP 18 2429 353008
Calice al Cornoviglio SP 19 1138 354146
Montignoso MS 20 10323 364469

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of La Spezia (93959 inhabitants)
12 Km W of Carrara (63133 inhabitants)
17 Km W of Massa (69479 inhabitants)
35 Km NW of Viareggio (62467 inhabitants)
52 Km NW of Lucca (89046 inhabitants)
55 Km NW of Pisa (89158 inhabitants)
66 Km NW of Livorno (159219 inhabitants)
79 Km W of Pistoia (90315 inhabitants)
85 Km SW of Parma (192836 inhabitants)
87 Km SW of Reggio nell'Emilia (171345 inhabitants)
89 Km E of Genova (586655 inhabitants)
95 Km W of Prato (191150 inhabitants)
99 Km SW of Modena (184973 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 2.0
ML 2.3
2008-03-21
22:18:34
44.09 9.949 6 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 681489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2008-03-21 22:18:34 ± 0.37
Latitude 44.0900 ± 0.0153
Longitude 9.9490 ± 0.0163
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 681489

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1541
Semi-minor axis of confidence ellipse (meter) 1175
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 2140.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.62
Epicentral distance of station closest to the epicenter (degree) 0.32106
Epicentral distance of station farthest from the epicenter (degree) 0.55488
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:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 681489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:55:11

Md:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 681489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:55:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.SHZ. 2008-03-21T22:18:54.54 0.3 undecidable manual Sg 131 61.5939 0.534 33
IV.GSCL.SHZ. 2008-03-21T22:18:52.93 0.1 undecidable manual Sg 60 58.497 -0.241 47
IV.ERBM.EHE. 2008-03-21T22:18:51.86 0.3 undecidable manual Sg 45 51.9036 0.442 34
IV.BDI.HHN. 2008-03-21T22:18:50.20 0.1 undecidable manual Sg 93 51.7038 -1.181 33
GU.SC2M.HHE. 2008-03-21T22:18:49.92 0.3 undecidable manual Sg 317 47.9187 -0.442 34
IV.PII.SHZ. 2008-03-21T22:18:45.54 0.1 undecidable manual Pg 131 61.5939 -0.018 98
IV.GSCL.SHZ. 2008-03-21T22:18:45.57 0.1 undecidable manual Pg 60 58.497 0.495 89
MN.VLC.HHN. 2008-03-21T22:18:45.94 0.1 undecidable manual Sg 77 35.6421 -0.634 44
IV.ERBM.EHE. 2008-03-21T22:18:44.54 0.1 undecidable manual Pg 45 51.9036 0.476 90
GU.SC2M.HHE. 2008-03-21T22:18:43.21 0.1 undecidable manual Pg 317 47.9187 -0.244 95
IV.BDI.HHN. 2008-03-21T22:18:43.93 0.1 undecidable manual Pg 93 51.7038 -0.114 97
MN.VLC.HHN. 2008-03-21T22:18:41.39 0.1 undecidable manual Pg 77 35.6421 0.126 100
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