Earthquake with magnitude of Md 3.2 on date 19-05-1997 and time 21:05:06 (Italy) in region 7 km SW Castel Ritaldi (PG)

A magnitude Md 3.2 earthquake occured in region: 7 km SW Castel Ritaldi (PG), on

  • 19-05-1997 19:05:06 (UTC)
  • 19-05-1997 21:05:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.77, 12.62 at 3 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
Castel Ritaldi PG 8 3278 3278
Massa Martana PG 8 3770 7048
Giano dell'Umbria PG 8 3846 10894
Spoleto PG 10 38218 49112
Acquasparta TR 11 4778 53890
Campello sul Clitunno PG 14 2442 56332
Montefalco PG 14 5679 62011
Trevi PG 16 8469 70480
Gualdo Cattaneo PG 17 6155 76635
Montecastrilli TR 17 5022 81657
Sant'Anatolia di Narco PG 18 564 82221
Todi PG 18 16851 99072
Scheggino PG 18 461 99533
San Gemini TR 18 5018 104551
Bevagna PG 19 5081 109632
Vallo di Nera PG 19 364 109996

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Foligno (57155 inhabitants)
23 Km N of Terni (111501 inhabitants)
43 Km SE of Perugia (166134 inhabitants)
58 Km NE of Viterbo (67173 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
89 Km W of Teramo (54892 inhabitants)
90 Km N of Tivoli (56533 inhabitants)
98 Km N of Roma (2864731 inhabitants)
98 Km SE of Arezzo (99543 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 3.2
ML-VAX 2.4
1997-05-19
19:05:06
42.77 12.63 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 269229
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-05-19 19:05:06 ± 0.228
Latitude 42.77 ± 0.01
Longitude 12.63 ± 0.03
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 269229

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) 2416.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.03635
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 269229
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:14:30

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 269229
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
--.BR9.Z. 1997-05-19T19:06:10.62 10.0 undecidable manual PN 337 0.0363 1.43 0.1
--.SFI.Z. 1997-05-19T19:05:48.43 10.0 undecidable manual SN 333 0.0114 -0.77 0.3
--.CSNT.Z. 1997-05-19T19:05:46.77 10.0 undecidable manual SN 306 0.0108 -0.82 0.3
--.BDI.Z. 1997-05-19T19:05:41.73 10.0 undecidable manual PN 312 0.0176 1.06 0.3
--.ZC9.Z. 1997-05-19T19:05:41.35 10.0 undecidable manual PN 323 0.0178 0.38 1
--.PQ9.Z. 1997-05-19T19:05:40.40 10.0 undecidable manual SG 142 0.0084 0.39 0.5
--.FB9.Z. 1997-05-19T19:05:39.34 10.0 undecidable manual SG 6 0.0083 -0.41 0.5
--.RFI.Z. 1997-05-19T19:05:37.87 10.0 undecidable manual PN 145 0.0159 -0.31 1.1
--.DUI.Z. 1997-05-19T19:05:37.47 10.0 undecidable manual PN 128 0.0157 -0.32 1.1
--.SDI.Z. 1997-05-19T19:05:32.76 10.0 undecidable manual PN 139 0.0123 0.16 1.4
--.AQU.Z. 1997-05-19T19:05:32.78 10.0 undecidable manual SG 125 0.0063 0.28 0.6
--.SFI.Z. 1997-05-19T19:05:31.13 10.0 undecidable manual PN 333 0.0114 -0.04 1.5
--.RSM.Z. 1997-05-19T19:05:30.00 10.0 undecidable manual PN 353 0.0104 0.21 1.5
--.CSNT.Z. 1997-05-19T19:05:29.21 10.0 undecidable manual PN 306 0.0108 -1.03 0.4
--.PQ9.Z. 1997-05-19T19:05:27.12 10.0 undecidable manual PG 142 0.0084 1.25 0.2
--.FB9.Z. 1997-05-19T19:05:25.52 10.0 negative manual PG 6 0.0083 -0.2 2.9
--.AQU.Z. 1997-05-19T19:05:21.90 10.0 undecidable manual PG 125 0.0063 -0.44 1.2
--.ARV.Z. 1997-05-19T19:05:21.77 10.0 undecidable manual PG 17 0.0069 -0.91 0.5
--.MNS.Z. 1997-05-19T19:05:21.22 10.0 undecidable manual SG 173 0.0034 -0.16 0.6
--.ASS.Z. 1997-05-19T19:05:18.21 10.0 undecidable manual SG 3 0.0026 0.23 0.6
--.MNS.Z. 1997-05-19T19:05:14.77 10.0 negative manual PG 173 0.0034 -0.34 2.7
--.ASS.Z. 1997-05-19T19:05:13.34 10.0 negative manual PG 3 0.0026 0.2 2.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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