Earthquake with magnitude of Md 3.0 on date 22-10-1999 and time 07:56:54 (UTC) in region 1 km NW Gualdo Tadino (PG)

A magnitude Md 3.0 earthquake occured in region: 1 km NW Gualdo Tadino (PG), on

  • 22-10-1999 07:56:54 (UTC)
  • 22-10-1999 09:56:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.241, 12.78 at 10 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 1 15208 15208
Fossato di Vico PG 6 2840 18048
Sigillo PG 11 2404 20452
Esanatoglia MC 14 2034 22486
Fiuminata MC 14 1402 23888
Costacciaro PG 14 1216 25104
Nocera Umbra PG 14 5839 30943
Fabriano AN 15 31480 62423
Valfabbrica PG 17 3389 65812
Sefro MC 17 422 66234
Pioraco MC 18 1134 67368
Matelica MC 19 9981 77349
Cerreto d'Esi AN 19 3817 81166

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Foligno (57155 inhabitants)
35 Km E of Perugia (166134 inhabitants)
70 Km S of Fano (60888 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
75 Km S of Pesaro (94582 inhabitants)
76 Km N of Terni (111501 inhabitants)
77 Km E of Arezzo (99543 inhabitants)
93 Km S of Rimini (147750 inhabitants)
99 Km NW of Teramo (54892 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 3.0
ML-VAX 2.1
1999-10-22
07:56:54
43.241 12.78 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 376009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-10-22 07:56:54 ± 0.099
Latitude 43.2410 ± 0.0061
Longitude 12.7800 ± 0.0122
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 376009

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) 1200
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.01182
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 376009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:53:02

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 376009
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
--.SFI.Z. 1999-10-22T07:57:26.50 10.0 undecidable manual SG 314 0.0085 0.13 0.5
--.MNS.Z. 1999-10-22T07:57:24.30 10.0 undecidable manual SG 184 0.0077 0.45 0.3
--.CRE.Z. 1999-10-22T07:57:19.27 10.0 undecidable manual SG 302 0.0064 0.42 0.3
--.PQ9.Z. 1999-10-22T07:57:18.00 10.0 undecidable manual PN 159 0.0117 0 1
--.GRFL.Z. 1999-10-22T07:57:18.51 10.0 undecidable manual PN 266 0.0118 0.27 0.8
--.CSNT.Z. 1999-10-22T07:57:15.86 10.0 positive manual PN 282 0.01 0.53 1
--.AQU.Z. 1999-10-22T07:57:14.00 10.0 undecidable manual PG 152 0.0089 0.3 0.9
--.SFI.Z. 1999-10-22T07:57:12.94 10.0 undecidable manual PG 314 0.0085 0.2 1.1
--.NRCA.Z. 1999-10-22T07:57:11.58 10.0 undecidable manual SG 149 0.0042 0.34 0.4
--.FB9.Z. 1999-10-22T07:57:10.29 10.0 undecidable manual SG 359 0.004 -0.2 0.6
--.MNS.Z. 1999-10-22T07:57:10.52 10.0 negative manual PG 184 0.0077 -0.61 0.9
--.CRE.Z. 1999-10-22T07:57:08.47 10.0 undecidable manual PG 302 0.0064 0.08 1.4
--.NRCA.Z. 1999-10-22T07:57:04.00 10.0 undecidable manual PG 149 0.0042 0 1.5
--.ARV.Z. 1999-10-22T07:57:03.98 10.0 undecidable manual SG 24 0.0025 -1.15 0
--.FB9.Z. 1999-10-22T07:57:03.30 10.0 positive manual PG 359 0.004 -0.54 1.3
--.ASS.Z. 1999-10-22T07:57:01.92 10.0 undecidable manual SG 207 0.0018 -0.57 0.2
--.ARV.Z. 1999-10-22T07:57:00.31 10.0 positive manual PG 24 0.0025 -0.16 2.9
--.SNTG.Z. 1999-10-22T07:57:00.14 10.0 undecidable manual SG 83 0.0011 0.31 0.5
--.ASS.Z. 1999-10-22T07:56:58.74 10.0 positive manual PG 207 0.0018 -0.21 2.7
--.SNTG.Z. 1999-10-22T07:56:57.93 10.0 positive manual PG 83 0.0011 0.52 1.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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