Earthquake with magnitude of Md 1.9 on date 23-11-1995 and time 02:11:52 (Italy) in region 9 km SE Marradi (FI)

A magnitude Md 1.9 earthquake occured in region: 9 km SE Marradi (FI), on

  • 23-11-1995 01:11:52 (UTC)
  • 23-11-1995 02:11:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0070, 11.6620 at 14 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
Marradi FI 9 3139 3139
San Godenzo FI 10 1167 4306
Premilcuore FC 10 799 5105
Portico e San Benedetto FC 10 756 5861
Tredozio FC 11 1212 7073
Palazzuolo sul Senio FI 15 1154 8227
Rocca San Casciano FC 16 1910 10137
Dicomano FI 17 5515 15652
Vicchio FI 18 8044 23696
Londa FI 18 1840 25536
Modigliana FC 20 4560 30096

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Faenza (58541 inhabitants)
39 Km SW of Forlì (117913 inhabitants)
39 Km S of Imola (69797 inhabitants)
42 Km NE of Firenze (382808 inhabitants)
47 Km E of Prato (191150 inhabitants)
47 Km NE of Scandicci (50609 inhabitants)
49 Km W of Cesena (96758 inhabitants)
60 Km SE of Bologna (386663 inhabitants)
60 Km E of Pistoia (90315 inhabitants)
63 Km N of Arezzo (99543 inhabitants)
63 Km SW of Ravenna (159116 inhabitants)
73 Km W of Rimini (147750 inhabitants)
81 Km NE of Siena (53903 inhabitants)
92 Km SE of Modena (184973 inhabitants)
92 Km S of Ferrara (133155 inhabitants)
95 Km E of Lucca (89046 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 1.9
ML-VAX 1.6
1995-11-23
01:11:52
44.007 11.662 14 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 236739
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1995-11-23 01:11:52 ± 0.214
Latitude 44.0070 ± 0.0075
Longitude 11.6620 ± 0.0103
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 236739

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) 1168.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00380
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:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 236739
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:44:07

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 236739
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
--.PTF.Z. 1995-11-23T01:12:02.18 10.0 undecidable manual PG 263 0.4218 0.12 0.7
--.SEI.Z. 1995-11-23T01:12:01.56 10.0 undecidable manual SG 282 0.2109 -0.72 0
--.SFI.Z. 1995-11-23T01:12:00.38 10.0 undecidable manual SG 127 0.1665 -0.29 0.2
--.PGD.Z. 1995-11-23T01:11:59.81 10.0 undecidable manual SG 162 0.1332 -0.03 0.6
--.VMG.Z. 1995-11-23T01:11:59.60 10.0 undecidable manual SG 242 0.0888 0.21 0.3
--.LMD.Z. 1995-11-23T01:11:58.66 10.0 undecidable manual SG 32 0.0777 0.09 0.5
--.SEI.Z. 1995-11-23T01:11:58.39 10.0 undecidable manual PG 282 0.2109 0.05 1.3
--.SFI.Z. 1995-11-23T01:11:57.31 10.0 undecidable manual PG 127 0.1665 -0.09 1.4
--.VMG.Z. 1995-11-23T01:11:56.43 10.0 undecidable manual PG 242 0.0888 0.08 1.4
--.PGD.Z. 1995-11-23T01:11:56.96 10.0 positive manual PG 162 0.1332 0.03 3.1
--.LMD.Z. 1995-11-23T01:11:56.24 10.0 undecidable manual PG 32 0.0777 0.05 1.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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