Earthquake with magnitude of Md 2.3 on date 18-06-1991 and time 21:06:47 (Italy) in region 4 km S Licciana Nardi (MS)

A magnitude Md 2.3 earthquake occured in region: 4 km S Licciana Nardi (MS), on

  • 18-06-1991 19:06:47 (UTC)
  • 18-06-1991 21:06:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2280, 10.0350 at 5 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
Licciana Nardi MS 4 4949 4949
Aulla MS 6 11263 16212
Tresana MS 7 2044 18256
Fivizzano MS 7 7925 26181
Podenzana MS 8 2180 28361
Villafranca in Lunigiana MS 10 4770 33131
Bagnone MS 10 1887 35018
Fosdinovo MS 10 4883 39901
Comano MS 11 714 40615
Casola in Lunigiana MS 12 988 41603
Bolano SP 12 7813 49416
Santo Stefano di Magra SP 12 9360 58776
Filattiera MS 14 2309 61085
Sarzana SP 14 21976 83061
Castelnuovo Magra SP 14 8415 91476
Mulazzo MS 15 2424 93900
Minucciano LU 15 2102 96002
Vezzano Ligure SP 15 7356 103358
Follo SP 16 6337 109695
Ortonovo SP 16 8277 117972
Calice al Cornoviglio SP 16 1138 119110
Arcola SP 16 10607 129717
Carrara MS 17 63133 192850
Ameglia SP 19 4365 197215
Lerici SP 19 10228 207443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Carrara (63133 inhabitants)
21 Km NE of La Spezia (93959 inhabitants)
23 Km NW of Massa (69479 inhabitants)
44 Km NW of Viareggio (62467 inhabitants)
57 Km NW of Lucca (89046 inhabitants)
64 Km NW of Pisa (89158 inhabitants)
68 Km SW of Parma (192836 inhabitants)
71 Km SW of Reggio nell'Emilia (171345 inhabitants)
78 Km W of Pistoia (90315 inhabitants)
78 Km N of Livorno (159219 inhabitants)
85 Km SW of Modena (184973 inhabitants)
90 Km E of Genova (586655 inhabitants)
92 Km SW of Carpi (70699 inhabitants)
93 Km W of Prato (191150 inhabitants)
96 Km S of Piacenza (102191 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 2.3
ML-VAX 1.8
1991-06-18
19:06:47
44.228 10.035 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 143699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-06-18 19:06:47 ± 0.439
Latitude 44.2280 ± 0.0382
Longitude 10.0350 ± 0.0393
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 143699

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 5279.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00389
Epicentral distance of station farthest from the epicenter (degree) 0.01352
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 143699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:14:08

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 143699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AB9.Z. 1991-06-18T19:07:33.68 10.0 undecidable manual SN 289 1.4763 -0.88 0.2
--.CRE.Z. 1991-06-18T19:07:16.39 10.0 undecidable manual PN 113 1.4985 1.39 0.3
--.AB9.Z. 1991-06-18T19:07:15.87 10.0 undecidable manual PN 289 1.4763 1.21 0.4
--.PII.Z. 1991-06-18T19:07:08.34 10.0 undecidable manual SG 145 0.6105 -1.78 0.1
--.MME.Z. 1991-06-18T19:07:05.70 10.0 undecidable manual SG 94 0.4773 -0.61 0.5
--.BDI.Z. 1991-06-18T19:07:04.70 10.0 undecidable manual SG 112 0.4329 0.38 0.6
--.PII.Z. 1991-06-18T19:07:00.43 10.0 negative manual PG 145 0.6105 -0.12 3
--.BOB.Z. 1991-06-18T19:07:00.80 10.0 undecidable manual PG 322 0.6771 -0.98 0.7
--.MME.Z. 1991-06-18T19:06:57.70 10.0 positive manual PG 94 0.4773 -0.28 2.9
--.BDI.Z. 1991-06-18T19:06:57.50 10.0 undecidable manual PG 112 0.4329 0.3 1.4
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