Earthquake with magnitude of Md 3.1 on date 06-01-1998 and time 14:22:13 (Italy) in region 3 km S Tivoli (RM)

A magnitude Md 3.1 earthquake occured in region: 3 km S Tivoli (RM), on

  • 06-01-1998 13:22:13 (UTC)
  • 06-01-1998 14:22:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.938, 12.797 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Tivoli RM 3 56533 56533
San Gregorio da Sassola RM 7 1619 58152
Castel Madama RM 7 7399 65551
Gallicano nel Lazio RM 8 6334 71885
Casape RM 8 744 72629
Guidonia Montecelio RM 9 88673 161302
San Polo dei Cavalieri RM 9 2992 164294
Marcellina RM 10 7280 171574
Poli RM 10 2418 173992
Zagarolo RM 11 17843 191835
Vicovaro RM 12 4019 195854
Colonna RM 12 4287 200141
Ciciliano RM 12 1336 201477
Sant'Angelo Romano RM 13 5018 206495
Sambuci RM 13 925 207420
San Cesareo RM 13 15153 222573
Castel San Pietro Romano RM 13 902 223475
Palestrina RM 13 21672 245147
Pisoniano RM 14 770 245917
Palombara Sabina RM 15 13269 259186
Mandela RM 15 917 260103
Saracinesco RM 15 185 260288
Monte Porzio Catone RM 15 8693 268981
Monte Compatri RM 15 11978 280959
Roccagiovine RM 15 263 281222
Cerreto Laziale RM 15 1118 282340
Capranica Prenestina RM 15 351 282691
Rocca di Cave RM 16 377 283068
Fonte Nuova RM 16 32562 315630
Rocca Priora RM 16 11962 327592
Gerano RM 16 1263 328855
San Vito Romano RM 17 3273 332128
Mentana RM 17 22921 355049
Cave RM 17 11287 366336
Frascati RM 17 22087 388423
Licenza RM 18 1011 389434
Anticoli Corrado RM 18 915 390349
Labico RM 18 6379 396728
Genazzano RM 19 6036 402764
Cineto Romano RM 19 601 403365
Rocca Canterano RM 19 196 403561
Rocca Santo Stefano RM 19 975 404536
Roviano RM 19 1351 405887
Marano Equo RM 19 779 406666
Monterotondo RM 20 40830 447496
Grottaferrata RM 20 20327 467823
Monteflavio RM 20 1348 469171
Percile RM 20 255 469426
Moricone RM 20 2650 472076

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km S of Tivoli (56533 inhabitants)
9 Km SE of Guidonia Montecelio (88673 inhabitants)
26 Km E of Roma (2864731 inhabitants)
28 Km N of Velletri (53303 inhabitants)
38 Km NE of Pomezia (62966 inhabitants)
40 Km NE of Aprilia (73446 inhabitants)
50 Km E of Fiumicino (78395 inhabitants)
53 Km N of Latina (125985 inhabitants)
56 Km N of Anzio (54211 inhabitants)
68 Km SW of L'Aquila (69753 inhabitants)
70 Km S of Terni (111501 inhabitants)
78 Km SE of Viterbo (67173 inhabitants)
85 Km E of Civitavecchia (52991 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 3.1
ML-VAX 2.5
1998-01-06
13:22:13
41.938 12.797 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 319399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-01-06 13:22:13 ± 0.19
Latitude 41.9380 ± 0.0106
Longitude 12.7970 ± 0.0156
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 319399

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) 1744.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
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) 0.0157
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 8
Type of magnitude Md
Reference to an origin 319399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:59:27

ML:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 319399
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 Takeoff_angle Residual Weight
--.SNTG.Z. 1998-01-06T13:22:56.69 10.0 undecidable manual SN 4 0.0118 0.33 0.3
--.ASS.Z. 1998-01-06T13:22:51.99 10.0 undecidable manual SN 354 0.0101 0.18 0.5
--.RFI.Z. 1998-01-06T13:22:51.12 10.0 undecidable manual SN 125 0.0098 0.18 0.5
--.NRCA.Z. 1998-01-06T13:22:46.14 10.0 undecidable manual SG 14 0.0083 0.48 0.2
--.FB9.Z. 1998-01-06T13:22:44.63 10.0 undecidable manual PN 359 0.0157 0.63 0.3
--.SDI.Z. 1998-01-06T13:22:40.85 10.0 undecidable manual SG 106 0.007 -0.44 0.4
--.SNTG.Z. 1998-01-06T13:22:37.92 10.0 undecidable manual PN 4 0.0118 -0.13 1.3
--.AQU.Z. 1998-01-06T13:22:35.58 10.0 undecidable manual SG 46 0.0055 -0.03 0.7
--.ASS.Z. 1998-01-06T13:22:34.53 10.0 undecidable manual PN 354 0.0101 -0.89 0.3
--.RFI.Z. 1998-01-06T13:22:34.61 10.0 undecidable manual PN 125 0.0098 -0.32 1.2
--.PLI2.Z. 1998-01-06T13:22:33.40 10.0 undecidable manual PG 112 0.0091 -0.69 0.5
--.PQ9.Z. 1998-01-06T13:22:30.67 10.0 undecidable manual SG 79 0.004 0.05 0.7
--.NRCA.Z. 1998-01-06T13:22:30.76 10.0 undecidable manual PG 14 0.0083 -1.12 0.2
--.SDI.Z. 1998-01-06T13:22:29.81 10.0 undecidable manual PG 106 0.007 0.46 0.9
--.AQU.Z. 1998-01-06T13:22:25.99 10.0 undecidable manual PG 46 0.0055 -0.08 1.7
--.PQ9.Z. 1998-01-06T13:22:23.45 10.0 positive manual PG 79 0.004 0.25 2.6
--.RDP.Z. 1998-01-06T13:22:20.11 10.0 undecidable manual SG 198 0.0017 -0.4 0.5
--.RMP.Z. 1998-01-06T13:22:19.10 10.0 undecidable manual SG 208 0.0013 0.24 0.6
--.RDP.Z. 1998-01-06T13:22:17.32 10.0 negative manual PG 198 0.0017 -0.04 3.4
--.RMP.Z. 1998-01-06T13:22:16.53 10.0 negative manual PG 208 0.0013 0.13 3.2
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