Earthquake with magnitude of Md 2.5 on date 13-09-1997 and time 01:43:32 (UTC) in region 3 km SE Casalattico (FR)

A magnitude Md 2.5 earthquake occured in region: 3 km SE Casalattico (FR), on

  • 13-09-1997 01:43:32 (UTC)
  • 13-09-1997 03:43:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6010, 13.7520 at 8 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
Casalattico FR 3 574 574
Atina FR 5 4316 4890
Casalvieri FR 5 2698 7588
Belmonte Castello FR 6 739 8327
Terelle FR 6 422 8749
Villa Latina FR 7 1241 9990
Colle San Magno FR 7 699 10689
Gallinaro FR 8 1269 11958
Roccasecca FR 9 7365 19323
Castrocielo FR 9 3965 23288
Vicalvi FR 9 783 24071
Santopadre FR 10 1357 25428
Alvito FR 10 2713 28141
Fontechiari FR 10 1303 29444
Villa Santa Lucia FR 10 2632 32076
Picinisco FR 11 1218 33294
Posta Fibreno FR 11 1139 34433
Settefrati FR 11 728 35161
Piedimonte San Germano FR 11 6535 41696
Sant'Elia Fiumerapido FR 12 6166 47862
Aquino FR 13 5370 53232
Arpino FR 13 7262 60494
Colfelice FR 13 1932 62426
San Donato Val di Comino FR 13 2107 64533
Cassino FR 14 36142 100675
Rocca d'Arce FR 14 959 101634
Vallerotonda FR 14 1581 103215
San Biagio Saracinisco FR 15 349 103564
Arce FR 15 5756 109320
Broccostella FR 15 2741 112061
Campoli Appennino FR 17 1725 113786
Fontana Liri FR 17 2953 116739
Isola del Liri FR 17 11715 128454
Pontecorvo FR 17 13242 141696
Sora FR 18 26144 167840
Acquafondata FR 18 263 168103
Pescosolido FR 18 1555 169658
Pignataro Interamna FR 18 2595 172253
Cervaro FR 18 8109 180362
Castelliri FR 19 3454 183816
San Giovanni Incarico FR 19 3336 187152
Viticuso FR 20 353 187505

Municipalities with at least 50000 inhabitants

An earthquake occurred to
72 Km E of Latina (125985 inhabitants)
76 Km NW of Caserta (76326 inhabitants)
79 Km NW of Aversa (53047 inhabitants)
82 Km E of Velletri (53303 inhabitants)
84 Km NW of Giugliano in Campania (122974 inhabitants)
86 Km NW of Marano di Napoli (59874 inhabitants)
88 Km NW of Pozzuoli (81661 inhabitants)
89 Km SE of L'Aquila (69753 inhabitants)
89 Km NW of Afragola (65057 inhabitants)
89 Km E of Tivoli (56533 inhabitants)
89 Km NW of Acerra (59573 inhabitants)
89 Km NW of Casoria (77642 inhabitants)
90 Km SW of Chieti (51815 inhabitants)
92 Km E of Aprilia (73446 inhabitants)
94 Km NW of Napoli (974074 inhabitants)
95 Km E of Anzio (54211 inhabitants)
96 Km E of Guidonia Montecelio (88673 inhabitants)
100 Km NW of Portici (55274 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 2.5 1997-09-13
01:43:32
41.601 13.752 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 277679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-13 01:43:32 ± 0.332
Latitude 41.6010 ± 0.0138
Longitude 13.7520 ± 0.0228
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 277679

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) 2439.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.01004
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 277679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:22:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1997-09-13T01:43:55.24 10.0 undecidable manual PN 314 1.11 1.22 0.1
--.PQ9.Z. 1997-09-13T01:43:50.64 10.0 undecidable manual SG 328 0.4995 0.1 0.6
--.CPI2.Z. 1997-09-13T01:43:48.38 10.0 undecidable manual SG 92 0.4218 0.14 0.7
--.RFI.Z. 1997-09-13T01:43:46.20 10.0 undecidable manual SG 149 0.3441 0.41 0.6
--.CPI2.Z. 1997-09-13T01:43:41.18 10.0 undecidable manual PG 92 0.4218 -0.3 1.6
--.PLI2.Z. 1997-09-13T01:43:41.98 10.0 undecidable manual SG 106 0.2331 0.16 0.7
--.PQ9.Z. 1997-09-13T01:43:41.59 10.0 undecidable manual PG 328 0.4995 -1.22 0.2
--.CRVI.Z. 1997-09-13T01:43:41.61 10.0 undecidable manual PG 73 0.4218 -0.01 1.7
--.RFI.Z. 1997-09-13T01:43:39.82 10.0 undecidable manual PG 149 0.3441 -0.24 1.7
--.SDI.Z. 1997-09-13T01:43:37.87 10.0 undecidable manual SG 21 0.111 0.46 0.5
--.PLI2.Z. 1997-09-13T01:43:37.72 10.0 undecidable manual PG 106 0.2331 -0.05 1.8
--.SDI.Z. 1997-09-13T01:43:35.31 10.0 undecidable manual PG 21 0.111 0.08 1.8
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