Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.1 on date 27-03-1992 and time 10:50:40 (Italy) in region 1 km NW Tresana (MS)

A magnitude Md 2.1 earthquake occured in region: 1 km NW Tresana (MS), on

  • 27-03-1992 09:50:40 (UTC)
  • 27-03-1992 10:50:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2460, 9.9450 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.

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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 1 2044 2044
Podenzana MS 4 2180 4224
Aulla MS 4 11263 15487
Villafranca in Lunigiana MS 5 4770 20257
Bolano SP 7 7813 28070
Licciana Nardi MS 8 4949 33019
Calice al Cornoviglio SP 9 1138 34157
Bagnone MS 9 1887 36044
Mulazzo MS 9 2424 38468
Santo Stefano di Magra SP 10 9360 47828
Filattiera MS 10 2309 50137
Follo SP 11 6337 56474
Vezzano Ligure SP 13 7356 63830
Fosdinovo MS 14 4883 68713
Fivizzano MS 14 7925 76638
Sarzana SP 15 21976 98614
Arcola SP 15 10607 109221
Rocchetta di Vara SP 15 703 109924
Beverino SP 15 2429 112353
Pontremoli MS 16 7357 119710
Comano MS 16 714 120424
Zignago SP 16 532 120956
Castelnuovo Magra SP 17 8415 129371
Brugnato SP 18 1270 130641
Riccò del Golfo di Spezia SP 18 3698 134339
Borghetto di Vara SP 18 938 135277
La Spezia SP 18 93959 229236
Zeri MS 19 1094 230330
Lerici SP 19 10228 240558
Pignone SP 19 565 241123
Casola in Lunigiana MS 19 988 242111
Ortonovo SP 19 8277 250388
Ameglia SP 20 4365 254753

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of La Spezia (93959 inhabitants)
22 Km NW of Carrara (63133 inhabitants)
28 Km NW of Massa (69479 inhabitants)
49 Km NW of Viareggio (62467 inhabitants)
63 Km NW of Lucca (89046 inhabitants)
69 Km SW of Parma (192836 inhabitants)
69 Km NW of Pisa (89158 inhabitants)
74 Km SW of Reggio nell'Emilia (171345 inhabitants)
82 Km NW of Livorno (159219 inhabitants)
83 Km E of Genova (586655 inhabitants)
85 Km W of Pistoia (90315 inhabitants)
90 Km W of Modena (184973 inhabitants)
92 Km S of Piacenza (102191 inhabitants)
96 Km SW of Carpi (70699 inhabitants)
99 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 1992-03-27
09:50:40		 44.246 9.945 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 161369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-03-27 09:50:40 ± 0.246
Latitude 44.2460 ± 0.0172
Longitude 9.9450 ± 0.0199
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 161369

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) 2483.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00421
Epicentral distance of station farthest from the epicenter (degree) 0.00599
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 161369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:30:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PII.Z. 1992-03-27T09:51:04.00 10.0 undecidable manual SG 141 0.666 0.12 0.5
--.BOB.Z. 1992-03-27T09:51:02.17 10.0 undecidable manual SG 326 0.6327 -0.42 0.5
--.MME.Z. 1992-03-27T09:50:59.90 10.0 undecidable manual SG 95 0.5439 0.09 0.8
--.BDI.Z. 1992-03-27T09:50:58.61 10.0 undecidable manual SG 111 0.4995 0.11 0.7
--.GU9.Z. 1992-03-27T09:50:56.81 10.0 undecidable manual SG 77 0.4662 -0.7 0.3
--.PII.Z. 1992-03-27T09:50:53.00 10.0 undecidable manual PG 141 0.666 -0.98 0.5
--.BOB.Z. 1992-03-27T09:50:53.55 10.0 undecidable manual PG 326 0.6327 0.31 1.5
--.MME.Z. 1992-03-27T09:50:51.85 10.0 undecidable manual PG 95 0.5439 0.21 1.7
--.BDI.Z. 1992-03-27T09:50:51.16 10.0 undecidable manual PG 111 0.4995 0.29 1.4
--.GU9.Z. 1992-03-27T09:50:50.60 10.0 undecidable manual PG 77 0.4662 -0.24 2
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