Earthquake with magnitude of Md 3.4 on date 14-05-1997 and time 10:58:13 (Italy) in region 5 km SW Castel Ritaldi (PG)

A magnitude Md 3.4 earthquake occured in region: 5 km SW Castel Ritaldi (PG), on

  • 14-05-1997 08:58:13 (UTC)
  • 14-05-1997 10:58:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.79, 12.64 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
Castel Ritaldi PG 5 3278 3278
Giano dell'Umbria PG 7 3846 7124
Massa Martana PG 9 3770 10894
Spoleto PG 10 38218 49112
Montefalco PG 12 5679 54791
Campello sul Clitunno PG 12 2442 57233
Acquasparta TR 13 4778 62011
Trevi PG 14 8469 70480
Gualdo Cattaneo PG 15 6155 76635
Bevagna PG 17 5081 81716
Sant'Anatolia di Narco PG 18 564 82280
Scheggino PG 18 461 82741
Todi PG 19 16851 99592
Vallo di Nera PG 19 364 99956
Montecastrilli TR 19 5022 104978
Foligno PG 20 57155 162133
Collazzone PG 20 3473 165606

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km S of Foligno (57155 inhabitants)
25 Km N of Terni (111501 inhabitants)
41 Km SE of Perugia (166134 inhabitants)
60 Km NE of Viterbo (67173 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
88 Km N of Guidonia Montecelio (88673 inhabitants)
89 Km W of Teramo (54892 inhabitants)
93 Km N of Tivoli (56533 inhabitants)
97 Km SE of Arezzo (99543 inhabitants)
100 Km N of Roma (2864731 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 3.4
ML-VAX 2.0
1997-05-14
08:58:13
42.79 12.64 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 268469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-05-14 08:58:13 ± 0.235
Latitude 42.79 ± 0.01
Longitude 12.64 ± 0.04
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 268469

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) 3370.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.01578
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:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 268469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:13:47

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 268469
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
--.SDI.Z. 1997-05-14T08:58:58.97 10.0 undecidable manual SN 140 0.0125 0.41 0.6
--.SFI.Z. 1997-05-14T08:58:55.38 10.0 undecidable manual SN 333 0.0113 -0.04 0.7
--.PQ9.Z. 1997-05-14T08:58:47.58 10.0 undecidable manual SG 143 0.0085 0.38 0.8
--.DUI.Z. 1997-05-14T08:58:46.18 10.0 undecidable manual PN 129 0.0158 1.41 0.5
--.FB9.Z. 1997-05-14T08:58:44.65 10.0 undecidable manual SG 6 0.0082 -1.19 0.4
--.SDI.Z. 1997-05-14T08:58:40.40 10.0 undecidable manual PN 140 0.0125 0.77 1.2
--.ARV.Z. 1997-05-14T08:58:39.50 10.0 undecidable manual SG 17 0.0066 -1.07 0.4
--.SFI.Z. 1997-05-14T08:58:38.97 10.0 undecidable manual PN 333 0.0113 1.15 0.8
--.CSNT.Z. 1997-05-14T08:58:37.39 10.0 undecidable manual PN 305 0.0107 0.37 1.7
--.PQ9.Z. 1997-05-14T08:58:34.24 10.0 undecidable manual PG 143 0.0085 1.16 1
--.RMP.Z. 1997-05-14T08:58:32.50 10.0 undecidable manual PG 177 0.0087 -1.06 1.1
--.FB9.Z. 1997-05-14T08:58:31.24 10.0 undecidable manual PG 6 0.0082 -1.05 1.1
--.MNS.Z. 1997-05-14T08:58:28.98 10.0 undecidable manual SG 175 0.0036 -0.48 0.8
--.ARV.Z. 1997-05-14T08:58:28.94 10.0 undecidable manual PG 17 0.0066 -0.31 2.1
--.AQU.Z. 1997-05-14T08:58:27.53 10.0 undecidable manual PG 127 0.0064 -1.11 1.1
--.ASS.Z. 1997-05-14T08:58:25.19 10.0 undecidable manual SG 2 0.0024 0.7 0.6
--.MNS.Z. 1997-05-14T08:58:21.72 10.0 undecidable manual PG 175 0.0036 -1.11 1
--.ASS.Z. 1997-05-14T08:58:20.27 10.0 undecidable manual PG 2 0.0024 0.31 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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