Earthquake with magnitude of Md 3.8 on date 20-12-2001 and time 02:54:08 (Italy) in region 2 km SE Gerano (RM)

A magnitude Md 3.8 earthquake occured in region: 2 km SE Gerano (RM), on

  • 20-12-2001 01:54:08 (UTC)
  • 20-12-2001 02:54:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.918, 13.003 at 2 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
Gerano RM 2 1263 1263
Rocca Santo Stefano RM 2 975 2238
Cerreto Laziale RM 4 1118 3356
Pisoniano RM 4 770 4126
Canterano RM 4 351 4477
San Vito Romano RM 4 3273 7750
Bellegra RM 5 2887 10637
Rocca Canterano RM 5 196 10833
Olevano Romano RM 7 6687 17520
Roiate RM 7 737 18257
Ciciliano RM 7 1336 19593
Capranica Prenestina RM 7 351 19944
Agosta RM 8 1765 21709
Subiaco RM 8 9074 30783
Affile RM 9 1548 32331
Marano Equo RM 9 779 33110
Rocca di Cave RM 9 377 33487
Sambuci RM 9 925 34412
Poli RM 10 2418 36830
Cervara di Roma RM 10 455 37285
Casape RM 10 744 38029
Genazzano RM 10 6036 44065
Arcinazzo Romano RM 10 1348 45413
Anticoli Corrado RM 10 915 46328
Saracinesco RM 11 185 46513
San Gregorio da Sassola RM 11 1619 48132
Serrone FR 12 3099 51231
Castel San Pietro Romano RM 12 902 52133
Roviano RM 12 1351 53484
Cave RM 12 11287 64771
Palestrina RM 13 21672 86443
Castel Madama RM 13 7399 93842
Paliano FR 13 8281 102123
Rocca di Botte AQ 13 856 102979
Arsoli RM 14 1586 104565
Jenne RM 14 366 104931
Vicovaro RM 14 4019 108950
Mandela RM 14 917 109867
Camerata Nuova RM 14 447 110314
Cineto Romano RM 15 601 110915
Oricola AQ 15 1244 112159
Piglio FR 15 4666 116825
Gallicano nel Lazio RM 16 6334 123159
Riofreddo RM 16 781 123940
Zagarolo RM 17 17843 141783
San Polo dei Cavalieri RM 17 2992 144775
Valmontone RM 17 15959 160734
Roccagiovine RM 17 263 160997
Labico RM 18 6379 167376
Tivoli RM 18 56533 223909
Pereto AQ 18 682 224591
Vallinfreda RM 19 283 224874
Vallepietra RM 19 283 225157
Licenza RM 19 1011 226168
San Cesareo RM 20 15153 241321
Acuto FR 20 1920 243241
Marcellina RM 20 7280 250521

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Tivoli (56533 inhabitants)
25 Km E of Guidonia Montecelio (88673 inhabitants)
32 Km NE of Velletri (53303 inhabitants)
43 Km E of Roma (2864731 inhabitants)
46 Km NE of Aprilia (73446 inhabitants)
50 Km NE of Pomezia (62966 inhabitants)
51 Km N of Latina (125985 inhabitants)
58 Km SW of L'Aquila (69753 inhabitants)
61 Km NE of Anzio (54211 inhabitants)
65 Km E of Fiumicino (78395 inhabitants)
77 Km SE of Terni (111501 inhabitants)
93 Km SE of Viterbo (67173 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 3.8
MLNET 3.7
2001-12-20
01:54:08
41.918 13.003 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 433389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-12-20 01:54:08 ± 0.149
Latitude 41.9180 ± 0.0064
Longitude 13.0030 ± 0.0076
Depth (km) 2 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 433389

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) 951.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.04428
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 44
Magnitudes information

Md:3.8

Field Value
Value 3.8
Uncertainty
Num. used stations 21
Type of magnitude Md
Reference to an origin 433389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:49:15

ML:3.7

Field Value
Value 3.7
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 433389
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
--.DOI.Z. 2001-12-20T01:55:24.97 10.0 undecidable manual PN 303 0.0443 1.77 0
--.FVI.Z. 2001-12-20T01:55:20.44 10.0 undecidable manual PN 357 0.042 0.67 0
--.PTCC.Z. 2001-12-20T01:55:17.38 10.0 undecidable manual PN 2 0.0404 0.14 0
--.CTI.Z. 2001-12-20T01:55:14.40 10.0 undecidable manual PN 347 0.0381 0.61 0
--.GMNA.Z. 2001-12-20T01:55:14.84 10.0 undecidable manual PN 1 0.0392 -0.6 0
--.GRI.Z. 2001-12-20T01:55:11.73 10.0 undecidable manual PN 138 0.0363 0.65 0
--.ACI.Z. 2001-12-20T01:55:08.90 10.0 undecidable manual PN 135 0.0317 4.83 0
--.TRI.Z. 2001-12-20T01:55:08.55 10.0 undecidable manual PN 7 0.0344 0.41 0
--.CRE.Z. 2001-12-20T01:55:06.00 10.0 undecidable manual SN 335 0.0168 0.66 0.8
--.TDS.Z. 2001-12-20T01:55:03.50 10.0 undecidable manual PN 130 0.0304 1 0
--.CSI.Z. 2001-12-20T01:55:03.86 10.0 undecidable manual PN 129 0.0295 3.3 0
--.BRT.Z. 2001-12-20T01:55:02.20 10.0 undecidable manual PN 107 0.0295 1.44 0
--.LTRZ.Z. 2001-12-20T01:55:00.27 10.0 undecidable manual PN 113 0.0283 1.41 0
--.ARV.Z. 2001-12-20T01:54:58.63 10.0 undecidable manual SN 358 0.0142 0.12 1.1
--.BDI.Z. 2001-12-20T01:54:54.62 10.0 undecidable manual PN 321 0.0249 0.98 0
--.SNTG.Z. 2001-12-20T01:54:52.00 10.0 undecidable manual SN 357 0.012 -0.71 1.4
--.MGR.Z. 2001-12-20T01:54:51.76 10.0 undecidable manual PN 131 0.0236 0.2 0.1
--.SLCN.Z. 2001-12-20T01:54:50.73 10.0 undecidable manual PN 126 0.0224 0.83 0.2
--.ASS.Z. 2001-12-20T01:54:49.00 10.0 undecidable manual SN 347 0.0105 0.19 1.5
--.FGMS.Z. 2001-12-20T01:54:47.50 10.0 undecidable manual PN 94 0.0198 1.61 0.5
--.SGO.Z. 2001-12-20T01:54:46.14 10.0 undecidable manual PN 127 0.0198 0.34 0.5
--.SFI.Z. 2001-12-20T01:54:45.96 10.0 undecidable manual PN 337 0.0193 0.76 0.6
--.MRLC.Z. 2001-12-20T01:54:45.78 10.0 undecidable manual PN 120 0.0198 0.04 0.5
--.RSM.Z. 2001-12-20T01:54:44.00 10.0 undecidable manual PN 348 0.0184 0.28 0.7
--.CRVI.Z. 2001-12-20T01:54:44.00 10.0 undecidable manual SG 100 0.0089 0.52 1.7
--.FG4.Z. 2001-12-20T01:54:44.83 10.0 undecidable manual PN 111 0.0183 1.26 0.7
--.CSNT.Z. 2001-12-20T01:54:43.43 10.0 undecidable manual PN 321 0.018 0.41 0.7
--.RFI.Z. 2001-12-20T01:54:43.00 10.0 undecidable manual SG 129 0.0086 0.52 1.7
--.RGNG.Z. 2001-12-20T01:54:43.43 10.0 undecidable manual PN 96 0.0174 1.22 0.8
--.GRFL.Z. 2001-12-20T01:54:42.26 10.0 negative manual PN 309 0.0174 0.13 0.8
--.NRCA.Z. 2001-12-20T01:54:41.50 10.0 undecidable manual SG 4 0.0083 0.31 1.8
--.FSSB.Z. 2001-12-20T01:54:41.41 10.0 undecidable manual PN 354 0.016 1.38 0.9
--.FG5.Z. 2001-12-20T01:54:41.87 10.0 undecidable manual PN 109 0.0162 1.47 0.9
--.CRE.Z. 2001-12-20T01:54:41.47 10.0 undecidable manual PN 335 0.0168 0.25 0.8
--.CSSN.Z. 2001-12-20T01:54:40.35 10.0 undecidable manual PN 124 0.0166 -0.59 0.8
--.RNI2.Z. 2001-12-20T01:54:39.70 10.0 undecidable manual SG 103 0.0079 -0.35 1.8
--.ARV.Z. 2001-12-20T01:54:38.21 10.0 undecidable manual PN 358 0.0142 0.93 1.1
--.MRB1.Z. 2001-12-20T01:54:38.98 10.0 undecidable manual PN 117 0.015 0.45 1
--.VTB1.Z. 2001-12-20T01:54:34.72 10.0 undecidable manual PN 120 0.0128 -0.37 1.3
--.SNTG.Z. 2001-12-20T01:54:33.34 10.0 undecidable manual PN 357 0.012 -0.59 1.4
--.ASS.Z. 2001-12-20T01:54:30.51 10.0 undecidable manual PN 347 0.0105 -1.17 1.5
--.AQU.Z. 2001-12-20T01:54:29.00 10.0 undecidable manual SG 33 0.0047 0.43 1.8
--.MNS.Z. 2001-12-20T01:54:28.70 10.0 undecidable manual SG 332 0.0047 0.22 1.8
--.CRVI.Z. 2001-12-20T01:54:27.28 10.0 undecidable manual PG 100 0.0089 -1.32 1.7
--.RFI.Z. 2001-12-20T01:54:26.59 10.0 undecidable manual PG 129 0.0086 -1.44 1.7
--.RNI2.Z. 2001-12-20T01:54:25.68 10.0 undecidable manual PG 103 0.0079 -0.94 1.8
--.VVLD.Z. 2001-12-20T01:54:25.80 10.0 undecidable manual SG 95 0.0041 -0.32 1.8
--.NRCA.Z. 2001-12-20T01:54:25.88 10.0 undecidable manual PG! 4 0.0083 -1.4 1.8
--.RVI2.Z. 2001-12-20T01:54:25.00 10.0 undecidable manual PG 110 0.0073 -0.35 1.8
--.PTQR.Z. 2001-12-20T01:54:21.50 10.0 undecidable manual SG 70 0.0028 1.15 1.8
--.MA9.Z. 2001-12-20T01:54:20.00 10.0 undecidable manual SG 239 0.0026 0.3 1.8
--.MNS.Z. 2001-12-20T01:54:19.13 10.0 undecidable manual PG 332 0.0047 -0.82 1.8
--.AQU.Z. 2001-12-20T01:54:19.59 10.0 undecidable manual PG 33 0.0047 -0.4 1.8
--.RDP.Z. 2001-12-20T01:54:19.00 10.0 undecidable manual SG 233 0.0023 0.42 1.8
--.VVLD.Z. 2001-12-20T01:54:18.39 10.0 undecidable manual PG 95 0.0041 -0.19 1.8
--.PTQR.Z. 2001-12-20T01:54:15.98 10.0 negative manual PG 70 0.0028 0.73 1.8
--.RDP.Z. 2001-12-20T01:54:14.46 10.0 positive manual PG 233 0.0023 0.23 1.8
--.MA9.Z. 2001-12-20T01:54:14.69 10.0 negative manual PG 239 0.0026 -0.19 1.8
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