Earthquake with magnitude of Md 3.1 on date 19-07-1997 and time 20:43:07 (Italy) in region 3 km N Gavignano (RM)

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

  • 19-07-1997 18:43:07 (UTC)
  • 19-07-1997 20:43:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.724, 13.045 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
Gavignano RM 3 1916 1916
Colleferro RM 3 21595 23511
Segni RM 4 9159 32670
Montelanico RM 8 2131 34801
Paliano FR 9 8281 43082
Gorga RM 9 710 43792
Anagni FR 10 21464 65256
Sgurgola FR 11 2676 67932
Artena RM 11 14276 82208
Rocca Massima LT 11 1136 83344
Valmontone RM 12 15959 99303
Acuto FR 13 1920 101223
Genazzano RM 14 6036 107259
Carpineto Romano RM 14 4524 111783
Serrone FR 14 3099 114882
Cave RM 14 11287 126169
Cori LT 14 11065 137234
Piglio FR 15 4666 141900
Labico RM 15 6379 148279
Olevano Romano RM 15 6687 154966
Morolo FR 16 3257 158223
Rocca di Cave RM 16 377 158600
Norma LT 16 3946 162546
Roiate RM 17 737 163283
Fiuggi FR 17 10536 173819
Capranica Prenestina RM 17 351 174170
Lariano RM 18 13432 187602
Bellegra RM 18 2887 190489
Ferentino FR 18 21213 211702
Palestrina RM 18 21672 233374
Arcinazzo Romano RM 18 1348 234722
Affile RM 19 1548 236270
Castel San Pietro Romano RM 19 902 237172
San Vito Romano RM 19 3273 240445
Bassiano LT 19 1583 242028
Torre Cajetani FR 20 1376 243404
Supino FR 20 4873 248277
Sermoneta LT 20 9842 258119
Trivigliano FR 20 1705 259824

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Velletri (53303 inhabitants)
31 Km NE of Latina (125985 inhabitants)
34 Km SE of Tivoli (56533 inhabitants)
36 Km E of Aprilia (73446 inhabitants)
41 Km SE of Guidonia Montecelio (88673 inhabitants)
45 Km E of Pomezia (62966 inhabitants)
46 Km NE of Anzio (54211 inhabitants)
50 Km E of Roma (2864731 inhabitants)
67 Km E of Fiumicino (78395 inhabitants)
76 Km SW of L'Aquila (69753 inhabitants)
99 Km SE of Terni (111501 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 1.8
1997-07-19
18:43:07
41.724 13.045 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 273629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-07-19 18:43:07 ± 0.167
Latitude 41.7240 ± 0.0157
Longitude 13.0450 ± 0.0114
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 273629

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) 1980.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.01595
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 5
Type of magnitude Md
Reference to an origin 273629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:18:34

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 273629
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
--.CPI2.Z. 1997-07-19T18:43:41.65 10.0 undecidable manual SG 97 0.0086 0.88 0.3
--.ARV.Z. 1997-07-19T18:43:38.34 10.0 undecidable manual PN 357 0.0159 0.07 1.2
--.PLI2.Z. 1997-07-19T18:43:36.20 10.0 undecidable manual SG 103 0.007 1.02 0.2
--.RFI.Z. 1997-07-19T18:43:36.91 10.0 undecidable manual SG 120 0.0074 0.63 0.5
--.AQU.Z. 1997-07-19T18:43:32.84 10.0 undecidable manual SG 22 0.0061 0.99 0.2
--.MNS.Z. 1997-07-19T18:43:32.77 10.0 undecidable manual SG 337 0.0064 -0.06 0.8
--.MAB1.Z. 1997-07-19T18:43:30.95 10.0 undecidable manual PN 112 0.0106 0.84 0.6
--.DUI.Z. 1997-07-19T18:43:28.60 10.0 undecidable manual PG 92 0.0095 -0.23 1.6
--.SDI.Z. 1997-07-19T18:43:28.72 10.0 undecidable manual SG 91 0.0051 0.46 0.6
--.CPI2.Z. 1997-07-19T18:43:26.90 10.0 undecidable manual PG 97 0.0086 -0.43 1.4
--.RFI.Z. 1997-07-19T18:43:23.43 10.0 undecidable manual PG 120 0.0074 -0.5 1.4
--.PLI2.Z. 1997-07-19T18:43:23.30 10.0 undecidable manual PG 103 0.007 -0.16 2
--.AQU.Z. 1997-07-19T18:43:21.33 10.0 undecidable manual PG 22 0.0061 -0.05 2.1
--.MNS.Z. 1997-07-19T18:43:20.94 10.0 undecidable manual PG 337 0.0064 -1.01 0.5
--.SDI.Z. 1997-07-19T18:43:18.13 10.0 undecidable manual PG 91 0.0051 -1.16 0.3
--.RMP.Z. 1997-07-19T18:43:18.37 10.0 undecidable manual SG 288 0.0024 0.76 0.4
--.RDP.Z. 1997-07-19T18:43:16.45 10.0 undecidable manual SG 277 0.0022 -0.3 0.7
--.RMP.Z. 1997-07-19T18:43:13.31 10.0 undecidable manual PG 288 0.0024 0.16 2
--.RDP.Z. 1997-07-19T18:43:12.91 10.0 undecidable manual PG 277 0.0022 0.25 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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