Earthquake with magnitude of Md 2.8 on date 29-04-1993 and time 21:37:26 (UTC) in region 7 km E Gualdo Tadino (PG)

A magnitude Md 2.8 earthquake occured in region: 7 km E Gualdo Tadino (PG), on

  • 29-04-1993 21:37:26 (UTC)
  • 29-04-1993 23:37:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.232, 12.868 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
Gualdo Tadino PG 7 15208 15208
Esanatoglia MC 7 2034 17242
Fiuminata MC 7 1402 18644
Fossato di Vico PG 11 2840 21484
Pioraco MC 11 1134 22618
Sefro MC 12 422 23040
Matelica MC 12 9981 33021
Fabriano AN 12 31480 64501
Cerreto d'Esi AN 14 3817 68318
Nocera Umbra PG 15 5839 74157
Sigillo PG 15 2404 76561
Castelraimondo MC 16 4587 81148
Gagliole MC 16 620 81768
Costacciaro PG 19 1216 82984
Serravalle di Chienti MC 19 1070 84054
Camerino MC 19 6974 91028

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
68 Km SW of Ancona (100861 inhabitants)
69 Km S of Fano (60888 inhabitants)
76 Km S of Pesaro (94582 inhabitants)
77 Km N of Terni (111501 inhabitants)
84 Km E of Arezzo (99543 inhabitants)
93 Km NW of Teramo (54892 inhabitants)
95 Km S of Rimini (147750 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 2.8
ML-VAX 1.9
1993-04-29
21:37:26
43.232 12.868 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 184149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-04-29 21:37:26 ± 0.278
Latitude 43.2320 ± 0.0104
Longitude 12.8680 ± 0.0257
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 184149

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) 2381.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.01498
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:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 184149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:52:52

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 9
Type of magnitude ML
Reference to an origin 184149
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
--.PGD.Z. 1993-04-29T21:38:03.00 10.0 undecidable manual SG 307 0.0094 -0.69 0.4
--.SFI.Z. 1993-04-29T21:38:02.99 10.0 undecidable manual SG 312 0.009 0.96 0.3
--.AQU.Z. 1993-04-29T21:38:01.47 10.0 undecidable manual SG 155 0.0086 0.67 0.4
--.SDI.Z. 1993-04-29T21:37:59.80 10.0 undecidable manual PN 155 0.015 2.23 0
--.MNS.Z. 1993-04-29T21:37:57.13 10.0 undecidable manual SG 189 0.0077 -0.35 0.5
--.CRE.Z. 1993-04-29T21:37:54.42 10.0 undecidable manual SG 300 0.0069 -0.28 0.6
--.PGD.Z. 1993-04-29T21:37:48.10 10.0 undecidable manual PG 307 0.0094 -0.13 1.3
--.SFI.Z. 1993-04-29T21:37:47.85 10.0 undecidable manual PG 312 0.009 0.68 1
--.AQU.Z. 1993-04-29T21:37:45.67 10.0 undecidable manual PG 155 0.0086 -0.79 0.9
--.MNS.Z. 1993-04-29T21:37:43.38 10.0 positive manual PG 189 0.0077 -1.16 1.1
--.RSM.Z. 1993-04-29T21:37:42.49 10.0 undecidable manual PG 336 0.0068 -0.24 1.5
--.CRE.Z. 1993-04-29T21:37:42.55 10.0 undecidable manual PG 300 0.0069 -0.39 1.4
--.ARV.Z. 1993-04-29T21:37:37.37 10.0 undecidable manual SG 11 0.0024 -0.1 0.6
--.ASS.Z. 1993-04-29T21:37:36.32 10.0 undecidable manual SG 222 0.002 0.45 0.5
--.ASS.Z. 1993-04-29T21:37:32.51 10.0 negative manual PG 222 0.002 0.44 2.6
--.ARV.Z. 1993-04-29T21:37:32.88 10.0 negative manual PG 11 0.0024 -0.11 3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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