Earthquake with magnitude of Md 2.5 on date 15-06-1994 and time 20:07:55 (Italy) in region 7 km E Massa Martana (PG)

A magnitude Md 2.5 earthquake occured in region: 7 km E Massa Martana (PG), on

  • 15-06-1994 18:07:55 (UTC)
  • 15-06-1994 20:07:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7710, 12.6080 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
Massa Martana PG 7 3770 3770
Giano dell'Umbria PG 8 3846 7616
Castel Ritaldi PG 8 3278 10894
Acquasparta TR 10 4778 15672
Spoleto PG 11 38218 53890
Montefalco PG 14 5679 59569
Campello sul Clitunno PG 15 2442 62011
Gualdo Cattaneo PG 16 6155 68166
Todi PG 16 16851 85017
Trevi PG 17 8469 93486
Montecastrilli TR 17 5022 98508
San Gemini TR 18 5018 103526
Bevagna PG 18 5081 108607
Sant'Anatolia di Narco PG 19 564 109171
Scheggino PG 19 461 109632
Avigliano Umbro TR 19 2558 112190
Collazzone PG 20 3473 115663

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Foligno (57155 inhabitants)
24 Km N of Terni (111501 inhabitants)
42 Km SE of Perugia (166134 inhabitants)
57 Km NE of Viterbo (67173 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
91 Km W of Teramo (54892 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
97 Km SE of Arezzo (99543 inhabitants)
98 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 2.5
ML-VAX 1.6
1994-06-15
18:07:55
42.771 12.608 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 211559
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-06-15 18:07:55 ± 0.213
Latitude 42.7710 ± 0.0085
Longitude 12.6080 ± 0.0283
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 211559

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) 2492.5
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 13
Number of defining phases 13
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) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01149
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 211559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:19:25

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 211559
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(km) Takeoff_angle Residual Weight
--.PGD.Z. 1994-06-15T18:08:36.65 10.0 undecidable manual SN 330 1.2765 -1 0.1
--.CRE.Z. 1994-06-15T18:08:28.14 10.0 undecidable manual SG 330 0.9657 -1.41 0
--.ARV.Z. 1994-06-15T18:08:23.10 10.0 undecidable manual SG 18 0.7659 0.18 0.7
--.AQU.Z. 1994-06-15T18:08:21.00 10.0 undecidable manual SG 125 0.7104 -0.34 0.6
--.PGD.Z. 1994-06-15T18:08:20.12 10.0 undecidable manual PN 330 1.2765 0.32 1.1
--.SFI.Z. 1994-06-15T18:08:20.29 10.0 undecidable manual PN 334 1.2543 0.73 0.5
--.CRE.Z. 1994-06-15T18:08:15.28 10.0 undecidable manual PG 330 0.9657 0.16 1.5
--.ARV.Z. 1994-06-15T18:08:11.98 10.0 undecidable manual PG 18 0.7659 0.68 0.7
--.AQU.Z. 1994-06-15T18:08:10.00 10.0 undecidable manual PG 125 0.7104 -0.38 1.4
--.MNS.Z. 1994-06-15T18:08:10.75 10.0 undecidable manual SG 172 0.3885 0.21 0.7
--.ASS.Z. 1994-06-15T18:08:06.60 10.0 undecidable manual SG 6 0.2886 -0.22 0.7
--.MNS.Z. 1994-06-15T18:08:04.40 10.0 undecidable manual PG 172 0.3885 -0.11 1.8
--.ASS.Z. 1994-06-15T18:08:01.82 10.0 positive manual PG 6 0.2886 -0.18 3.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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