Earthquake with magnitude of Md 3.1 on date 05-11-1997 and time 21:25:53 (Italy) in region 1 km E San Polo dei Cavalieri (RM)

A magnitude Md 3.1 earthquake occured in region: 1 km E San Polo dei Cavalieri (RM), on

  • 05-11-1997 20:25:53 (UTC)
  • 05-11-1997 21:25:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.015, 12.847 at 4 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
San Polo dei Cavalieri RM 1 2992 2992
Marcellina RM 3 7280 10272
Vicovaro RM 4 4019 14291
Castel Madama RM 5 7399 21690
Roccagiovine RM 6 263 21953
Mandela RM 7 917 22870
Tivoli RM 7 56533 79403
Licenza RM 8 1011 80414
Sambuci RM 8 925 81339
Saracinesco RM 9 185 81524
Palombara Sabina RM 9 13269 94793
Ciciliano RM 10 1336 96129
Guidonia Montecelio RM 10 88673 184802
Percile RM 10 255 185057
Cineto Romano RM 11 601 185658
San Gregorio da Sassola RM 11 1619 187277
Monteflavio RM 11 1348 188625
Sant'Angelo Romano RM 11 5018 193643
Anticoli Corrado RM 12 915 194558
Roviano RM 12 1351 195909
Casape RM 12 744 196653
Moricone RM 13 2650 199303
Cerreto Laziale RM 14 1118 200421
Riofreddo RM 14 781 201202
Montorio Romano RM 14 1984 203186
Marano Equo RM 14 779 203965
Arsoli RM 14 1586 205551
Vallinfreda RM 15 283 205834
Poli RM 15 2418 208252
Pisoniano RM 15 770 209022
Gerano RM 15 1263 210285
Orvinio RI 15 405 210690
Agosta RM 16 1765 212455
Montelibretti RM 16 5323 217778
Rocca Canterano RM 16 196 217974
Gallicano nel Lazio RM 16 6334 224308
Vivaro Romano RM 16 182 224490
Oricola AQ 16 1244 225734
Scandriglia RI 17 3108 228842
Nerola RM 17 1926 230768
Mentana RM 17 22921 253689
Canterano RM 18 351 254040
Rocca di Botte AQ 18 856 254896
San Vito Romano RM 19 3273 258169
Cervara di Roma RM 19 455 258624
Rocca Santo Stefano RM 19 975 259599
Fonte Nuova RM 19 32562 292161
Pozzaglia Sabina RI 19 360 292521
Capranica Prenestina RM 19 351 292872
Castel San Pietro Romano RM 19 902 293774
Turania RI 19 241 294015
Zagarolo RM 19 17843 311858
Monterotondo RM 19 40830 352688
Palestrina RM 20 21672 374360

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km NE of Tivoli (56533 inhabitants)
10 Km E of Guidonia Montecelio (88673 inhabitants)
33 Km E of Roma (2864731 inhabitants)
37 Km N of Velletri (53303 inhabitants)
48 Km NE of Pomezia (62966 inhabitants)
50 Km NE of Aprilia (73446 inhabitants)
57 Km E of Fiumicino (78395 inhabitants)
59 Km SW of L'Aquila (69753 inhabitants)
61 Km N of Latina (125985 inhabitants)
63 Km S of Terni (111501 inhabitants)
66 Km N of Anzio (54211 inhabitants)
76 Km SE of Viterbo (67173 inhabitants)
87 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 2.4
1997-11-05
20:25:53
42.015 12.847 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 310039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-11-05 20:25:53 ± 0.161
Latitude 42.0150 ± 0.0086
Longitude 12.8470 ± 0.0159
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 310039

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) 1625.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.01506
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 310039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:50:52

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 310039
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
--.ASS.Z. 1997-11-05T20:26:30.73 10.0 undecidable manual SG 352 0.0095 0.72 0.2
--.FB9.Z. 1997-11-05T20:26:23.90 10.0 undecidable manual PN 358 0.0151 0.04 0.8
--.ARV.Z. 1997-11-05T20:26:21.10 10.0 undecidable manual PN 2 0.0134 0.69 0.5
--.SDI.Z. 1997-11-05T20:26:20.83 10.0 undecidable manual SG 112 0.007 -0.27 0.5
--.CPI2.Z. 1997-11-05T20:26:17.37 10.0 undecidable manual PN 110 0.0105 1.17 0.2
--.SNTG.Z. 1997-11-05T20:26:16.70 10.0 positive manual PN 3 0.0112 -0.37 1.7
--.RFI.Z. 1997-11-05T20:26:16.68 10.0 undecidable manual PN 129 0.01 1.42 0.1
--.CRVI.Z. 1997-11-05T20:26:15.59 10.0 undecidable manual PN 104 0.0101 0.13 1
--.PLI2.Z. 1997-11-05T20:26:13.20 10.0 undecidable manual PG 117 0.0091 -0.77 0.5
--.ASS.Z. 1997-11-05T20:26:13.80 10.0 undecidable manual PG 352 0.0095 -0.6 0.7
--.AQU.Z. 1997-11-05T20:26:12.93 10.0 undecidable manual SG 50 0.0048 -0.27 0.5
--.PQ9.Z. 1997-11-05T20:26:09.98 10.0 undecidable manual SG 88 0.0036 0.97 0.2
--.MNS.Z. 1997-11-05T20:26:08.44 10.0 undecidable manual SG 341 0.0035 0.27 0.5
--.SDI.Z. 1997-11-05T20:26:08.20 10.0 positive manual PG 112 0.007 -1.24 0.3
--.AQU.Z. 1997-11-05T20:26:04.71 10.0 positive manual PG 50 0.0048 0.02 2.6
--.RDP.Z. 1997-11-05T20:26:03.62 10.0 undecidable manual SG 200 0.0024 -0.12 0.5
--.PQ9.Z. 1997-11-05T20:26:02.58 10.0 positive manual PG 88 0.0036 0.3 2.3
--.MNS.Z. 1997-11-05T20:26:01.64 10.0 negative manual PG 341 0.0035 -0.16 2.5
--.RMP.Z. 1997-11-05T20:26:01.92 10.0 undecidable manual SG 207 0.002 -0.15 0.5
--.RDP.Z. 1997-11-05T20:25:59.18 10.0 positive manual PG 200 0.0024 -0.05 2.6
--.RMP.Z. 1997-11-05T20:25:58.46 10.0 positive manual PG 207 0.002 0.19 2.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download