Earthquake with magnitude of Md 4.0 on date 16-12-2000 and time 07:31:06 (UTC) in region 4 km SW Terni (TR)

A magnitude Md 4.0 earthquake occured in region: 4 km SW Terni (TR), on

  • 16-12-2000 07:31:06 (UTC)
  • 16-12-2000 08:31:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.53, 12.62 at 8 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
Terni TR 4 111501 111501
Stroncone TR 5 4917 116418
Narni TR 9 19785 136203
San Gemini TR 12 5018 141221
Configni RI 12 633 141854
Colli sul Velino RI 13 533 142387
Arrone TR 14 2763 145150
Montefranco TR 14 1276 146426
Cottanello RI 14 563 146989
Labro RI 15 374 147363
Greccio RI 15 1558 148921
Calvi dell'Umbria TR 15 1856 150777
Vacone RI 16 256 151033
Montasola RI 16 395 151428
Otricoli TR 17 1869 153297
Morro Reatino RI 17 373 153670
Ferentillo TR 17 1913 155583
Contigliano RI 18 3783 159366
Montecastrilli TR 18 5022 164388
Amelia TR 18 11897 176285
Montebuono RI 18 883 177168
Rivodutri RI 19 1253 178421
Polino TR 19 233 178654
Tarano RI 19 1444 180098
Acquasparta TR 19 4778 184876
Torri in Sabina RI 19 1256 186132

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SW of Terni (111501 inhabitants)
44 Km E of Viterbo (67173 inhabitants)
48 Km S of Foligno (57155 inhabitants)
59 Km N of Guidonia Montecelio (88673 inhabitants)
64 Km N of Tivoli (56533 inhabitants)
67 Km W of L'Aquila (69753 inhabitants)
67 Km S of Perugia (166134 inhabitants)
72 Km N of Roma (2864731 inhabitants)
84 Km NE of Civitavecchia (52991 inhabitants)
90 Km W of Teramo (54892 inhabitants)
90 Km NE of Fiumicino (78395 inhabitants)
94 Km N of Velletri (53303 inhabitants)
96 Km N of Pomezia (62966 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 4.0
ML-MEDNET 4.1
2000-12-16
07:31:06
42.53 12.62 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 407969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2000-12-16 07:31:06 ± 0.251
Latitude 42.53 ± 0.01
Longitude 12.62 ± 0.02
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 407969

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) 1609.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.01344
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

Md:4

Field Value
Value 4
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 407969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:24:11

ML:4.1

Field Value
Value 4.1
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 407969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 10:38:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SFI.Z. 2000-12-16T07:31:53.93 10.0 undecidable manual SN 337 0.0134 0.54 0.2
--.CSNT.Z. 2000-12-16T07:31:50.22 10.0 undecidable manual SN 314 0.0121 -0.07 0.4
--.VVLD.Z. 2000-12-16T07:31:41.63 10.0 undecidable manual SG 131 0.0089 0.57 0.2
--.RSM.Z. 2000-12-16T07:31:35.60 10.0 negative manual PN! 354 0.0126 2.42 0
--.SFI.Z. 2000-12-16T07:31:34.10 10.0 positive manual PN 337 0.0134 0.34 1.4
--.PGD.Z. 2000-12-16T07:31:34.26 10.0 undecidable manual PN 334 0.0134 0.34 0.7
--.RVI2.Z. 2000-12-16T07:31:33.15 10.0 undecidable manual PN 130 0.0124 0.9 0.1
--.CSNT.Z. 2000-12-16T07:31:31.96 10.0 negative manual PN 314 0.0121 -0.01 2
--.GRFL.Z. 2000-12-16T07:31:31.76 10.0 negative manual PN 297 0.0121 -0.22 1.7
--.FB9.Z. 2000-12-16T07:31:30.24 10.0 undecidable manual PN 5 0.0104 0.85 0.1
--.SDI.Z. 2000-12-16T07:31:29.56 10.0 undecidable manual PN 132 0.0108 -0.27 0.9
--.VVLD.Z. 2000-12-16T07:31:26.48 10.0 undecidable manual PG 131 0.0089 -0.16 1.1
--.ARV.Z. 2000-12-16T07:31:26.10 10.0 positive manual PG 13 0.0089 -0.68 0.6
--.LAV9.Z. 2000-12-16T07:31:23.94 10.0 negative manual PG 176 0.0076 -0.14 2.2
--.MA9.Z. 2000-12-16T07:31:21.76 10.0 undecidable manual PG 178 0.0068 -0.58 0.5
--.PQ9.Z. 2000-12-16T07:31:21.72 10.0 undecidable manual PG 131 0.0069 -0.75 0.2
--.AQU.Z. 2000-12-16T07:31:19.32 10.0 negative manual PG 106 0.0053 -0.08 2.3
--.ASS.Z. 2000-12-16T07:31:17.98 10.0 positive manual PG 2 0.0048 -0.21 2
--.NRCA.Z. 2000-12-16T07:31:17.24 10.0 positive manual PG 49 0.0042 0.22 2
--.MNS.Z. 2000-12-16T07:31:10.99 10.0 positive manual PG 163 0.0013 0.4 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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