Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 26-09-2004 and time 17:10:55 (Italy) in region 1 km SE Vivaro Romano (RM)

A magnitude Md 2.0 earthquake occured in region: 1 km SE Vivaro Romano (RM), on

  • 26-09-2004 15:10:55 (UTC)
  • 26-09-2004 17:10:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.0910, 13.0160 at 5 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
Vivaro Romano RM 1 182 182
Vallinfreda RM 2 283 465
Riofreddo RM 3 781 1246
Oricola AQ 5 1244 2490
Turania RI 5 241 2731
Arsoli RM 5 1586 4317
Carsoli AQ 6 5396 9713
Collalto Sabino RI 6 442 10155
Cineto Romano RM 6 601 10756
Roviano RM 7 1351 12107
Orvinio RI 8 405 12512
Pereto AQ 8 682 13194
Rocca di Botte AQ 8 856 14050
Nespolo RI 9 246 14296
Percile RM 9 255 14551
Pozzaglia Sabina RI 9 360 14911
Anticoli Corrado RM 9 915 15826
Licenza RM 10 1011 16837
Collegiove RI 10 213 17050
Mandela RM 10 917 17967
Roccagiovine RM 11 263 18230
Marano Equo RM 11 779 19009
Saracinesco RM 11 185 19194
Camerata Nuova RM 11 447 19641
Paganico Sabino RI 11 172 19813
Ascrea RI 12 234 20047
Cervara di Roma RM 12 455 20502
Agosta RM 12 1765 22267
Sambuci RM 13 925 23192
Vicovaro RM 13 4019 27211
Castel di Tora RI 15 288 27499
Colle di Tora RI 15 372 27871
Rocca Canterano RM 15 196 28067
Marcetelli RI 15 89 28156
Monteflavio RM 15 1348 29504
Sante Marie AQ 16 1166 30670
Ciciliano RM 16 1336 32006
Cerreto Laziale RM 16 1118 33124
Scandriglia RI 17 3108 36232
Canterano RM 17 351 36583
Varco Sabino RI 17 187 36770
San Polo dei Cavalieri RM 17 2992 39762
Poggio Moiano RI 17 2751 42513
Pescorocchiano RI 17 2075 44588
Gerano RM 18 1263 45851
Castel Madama RM 18 7399 53250
Montorio Romano RM 18 1984 55234
Marcellina RM 19 7280 62514
Subiaco RM 20 9074 71588
Rocca Santo Stefano RM 20 975 72563

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Tivoli (56533 inhabitants)
26 Km E of Guidonia Montecelio (88673 inhabitants)
43 Km SW of L'Aquila (69753 inhabitants)
49 Km NE of Velletri (53303 inhabitants)
49 Km E of Roma (2864731 inhabitants)
61 Km SE of Terni (111501 inhabitants)
63 Km NE of Aprilia (73446 inhabitants)
63 Km NE of Pomezia (62966 inhabitants)
70 Km N of Latina (125985 inhabitants)
73 Km E of Fiumicino (78395 inhabitants)
78 Km NE of Anzio (54211 inhabitants)
83 Km E of Viterbo (67173 inhabitants)
85 Km SW of Teramo (54892 inhabitants)
99 Km W of Chieti (51815 inhabitants)
100 Km S of Foligno (57155 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 2.0 2004-09-26
15:10:55		 42.091 13.016 5 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 505539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-09-26 15:10:55 ± 0.097
Latitude 42.0910 ± 0.0044
Longitude 13.0160 ± 0.0079
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 505539

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) 809.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
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) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00672
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 505539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:03:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.TOLF.Z. 2004-09-26T15:11:22.58 10.0 undecidable manual SG 268 0.7437 0.43 0.1
--.MNS.Z. 2004-09-26T15:11:10.22 10.0 undecidable manual SG 319 0.3774 0.32 0.2
--.TOLF.Z. 2004-09-26T15:11:10.46 10.0 undecidable manual PG 268 0.7437 -0.22 0.7
--.GUAR.Z. 2004-09-26T15:11:09.58 10.0 undecidable manual SG 143 0.3663 0.27 0.3
--.PTQR.Z. 2004-09-26T15:11:06.88 10.0 undecidable manual SG 103 0.2886 0.46 0.1
--.MNS.Z. 2004-09-26T15:11:03.57 10.0 undecidable manual PG 319 0.3774 -0.04 1.7
--.GUAR.Z. 2004-09-26T15:11:02.98 10.0 undecidable manual PG 143 0.3663 -0.28 0.7
--.PTQR.Z. 2004-09-26T15:11:01.54 10.0 undecidable manual PG 103 0.2886 -0.05 1.7
--.CERT.N. 2004-09-26T15:11:00.85 10.0 undecidable manual SG 190 0.1443 0.07 0.7
--.FIAM.Z. 2004-09-26T15:10:59.27 10.0 undecidable manual PG 22 0.1887 -0.11 1.5
--.CERT.Z. 2004-09-26T15:10:58.30 10.0 positive manual PG 190 0.1443 -0.04 3.5
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