Earthquake with magnitude of Md 2.4 on date 03-06-1990 and time 04:39:48 (Italy) in region 1 km SW Montieri (GR)

A magnitude Md 2.4 earthquake occured in region: 1 km SW Montieri (GR), on

  • 03-06-1990 02:39:48 (UTC)
  • 03-06-1990 04:39:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1270, 11.0090 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
Montieri GR 1 1204 1204
Chiusdino SI 7 1903 3107
Castelnuovo di Val di Cecina PI 12 2231 5338
Monterotondo Marittimo GR 13 1371 6709
Massa Marittima GR 13 8375 15084
Monticiano SI 14 1571 16655
Radicondoli SI 15 914 17569
Roccastrada GR 18 9199 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Siena (53903 inhabitants)
42 Km N of Grosseto (82087 inhabitants)
72 Km S of Scandicci (50609 inhabitants)
74 Km SE of Livorno (159219 inhabitants)
74 Km S of Firenze (382808 inhabitants)
80 Km W of Arezzo (99543 inhabitants)
82 Km SE of Pisa (89158 inhabitants)
84 Km S of Prato (191150 inhabitants)
90 Km SE of Lucca (89046 inhabitants)
90 Km S of Pistoia (90315 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 2.4
ML-VAX 2.1
1990-06-03
02:39:48
43.127 11.009 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 120319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-06-03 02:39:48 ± 0.267
Latitude 43.1270 ± 0.0144
Longitude 11.0090 ± 0.0348
Depth (km) 10 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 120319

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) 3248.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.00599
Epicentral distance of station farthest from the epicenter (degree) 0.01303
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 120319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:51:42

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 120319
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
--.MME.Z. 1990-06-03T02:40:22.30 10.0 undecidable manual SN! 347 1.0878 -2.54 0
--.BDI.Z. 1990-06-03T02:40:18.90 10.0 undecidable manual SG! 342 0.9768 -3.01 0
--.CRE.Z. 1990-06-03T02:40:15.86 10.0 undecidable manual SG 53 0.8325 -1.58 0
--.ARV.Z. 1990-06-03T02:40:14.87 10.0 undecidable manual PN 74 1.443 0.37 0.9
--.MNS.Z. 1990-06-03T02:40:14.70 10.0 undecidable manual PN 120 1.4319 -0.14 1.1
--.PII.Z. 1990-06-03T02:40:11.68 10.0 undecidable manual SG 329 0.6882 -0.86 0.1
--.FIR.N. 1990-06-03T02:40:11.00 10.0 undecidable manual SG 14 0.666 -0.9 0.1
--.MAO.Z. 1990-06-03T02:40:11.91 10.0 undecidable manual SG 171 0.7104 -1.51 0
--.ASS.Z. 1990-06-03T02:40:10.95 10.0 undecidable manual PN 92 1.1988 -0.06 1.2
--.MME.Z. 1990-06-03T02:40:09.68 10.0 undecidable manual PN 347 1.0878 0.2 1.2
--.SFI.Z. 1990-06-03T02:40:07.86 10.0 undecidable manual PG 37 0.9768 0.01 1.4
--.BDI.Z. 1990-06-03T02:40:07.77 10.0 undecidable manual PG 342 0.9768 -0.01 1.4
--.CRE.Z. 1990-06-03T02:40:05.58 10.0 undecidable manual PG 53 0.8325 0.38 1.1
--.MAO.Z. 1990-06-03T02:40:03.14 10.0 positive manual PG 171 0.7104 0.26 2.5
--.FIR.Z. 1990-06-03T02:40:02.50 10.0 negative manual PG 14 0.666 0.5 1.8
--.PII.Z. 1990-06-03T02:40:02.80 10.0 undecidable manual PG 329 0.6882 -0.29 1.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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