Earthquake with magnitude of Md 2.9 on date 01-07-1994 and time 02:14:02 (Italy) in region 7 km SW Castel Ritaldi (PG)

A magnitude Md 2.9 earthquake occured in region: 7 km SW Castel Ritaldi (PG), on

  • 01-07-1994 00:14:02 (UTC)
  • 01-07-1994 02:14:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.78, 12.62 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
Castel Ritaldi PG 7 3278 3278
Giano dell'Umbria PG 7 3846 7124
Massa Martana PG 8 3770 10894
Spoleto PG 11 38218 49112
Acquasparta TR 11 4778 53890
Montefalco PG 13 5679 59569
Campello sul Clitunno PG 14 2442 62011
Gualdo Cattaneo PG 16 6155 68166
Trevi PG 16 8469 76635
Todi PG 17 16851 93486
Bevagna PG 18 5081 98567
Montecastrilli TR 18 5022 103589
Sant'Anatolia di Narco PG 19 564 104153
San Gemini TR 19 5018 109171
Scheggino PG 19 461 109632
Collazzone PG 20 3473 113105

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Foligno (57155 inhabitants)
24 Km N of Terni (111501 inhabitants)
41 Km SE of Perugia (166134 inhabitants)
58 Km NE of Viterbo (67173 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
87 Km N of Guidonia Montecelio (88673 inhabitants)
90 Km W of Teramo (54892 inhabitants)
92 Km N of Tivoli (56533 inhabitants)
97 Km SE of Arezzo (99543 inhabitants)
99 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
Rev 1000 Md 2.9
ML-VAX 2.1
1994-07-01
00:14:02
42.78 12.62 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 212179
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-07-01 00:14:02 ± 0.147
Latitude 42.78 ± 0.01
Longitude 12.62 ± 0.02
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 212179

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) 1442.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.01748
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 212179
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:20:00

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 212179
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
--.BDI.Z. 1994-07-01T00:15:01.52 10.0 undecidable manual SN 311 0.0175 0.49 0.1
--.SFI.Z. 1994-07-01T00:14:44.90 10.0 undecidable manual SN 333 0.0113 0.32 0.4
--.PGD.Z. 1994-07-01T00:14:44.83 10.0 undecidable manual SN 329 0.0114 -0.2 0.6
--.RDP.Z. 1994-07-01T00:14:37.98 10.0 undecidable manual SG 175 0.0091 -0.45 0.4
--.BDI.Z. 1994-07-01T00:14:35.97 10.0 undecidable manual PN 311 0.0175 -0.36 0.7
--.ARV.Z. 1994-07-01T00:14:30.00 10.0 undecidable manual SG 18 0.0068 -0.03 0.8
--.AQU.Z. 1994-07-01T00:14:28.95 10.0 undecidable manual SG 125 0.0064 0.29 0.4
--.SFI.Z. 1994-07-01T00:14:27.22 10.0 undecidable manual PN 333 0.0113 0.39 0.8
--.PGD.Z. 1994-07-01T00:14:27.20 10.0 undecidable manual PN 329 0.0114 0.11 1.5
--.RSM.Z. 1994-07-01T00:14:25.29 10.0 undecidable manual PN 354 0.0104 -0.17 1.5
--.RDP.Z. 1994-07-01T00:14:22.59 10.0 undecidable manual PG 175 0.0091 -0.69 0.2
--.ARV.Z. 1994-07-01T00:14:18.60 10.0 undecidable manual PG 18 0.0068 0.17 1.7
--.MNS.Z. 1994-07-01T00:14:18.71 10.0 undecidable manual SG 173 0.0035 0.83 0
--.AQU.Z. 1994-07-01T00:14:17.54 10.0 undecidable manual PG 125 0.0064 -0.1 1.9
--.ASS.Z. 1994-07-01T00:14:13.42 10.0 undecidable manual SG 5 0.0025 -0.27 0.5
--.MNS.Z. 1994-07-01T00:14:11.58 10.0 undecidable manual PG 173 0.0035 0.16 1.7
--.ASS.Z. 1994-07-01T00:14:08.97 10.0 positive manual PG 5 0.0025 -0.03 3.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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