Earthquake with magnitude of Md 3.1 on date 16-07-1998 and time 03:30:20 (Italy) in region 4 km NE Pietralunga (PG)

A magnitude Md 3.1 earthquake occured in region: 4 km NE Pietralunga (PG), on

  • 16-07-1998 01:30:20 (UTC)
  • 16-07-1998 03:30:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.459, 12.476 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
Pietralunga PG 4 2111 2111
Apecchio PU 12 1882 3993
Cantiano PU 12 2245 6238
Gubbio PG 14 32216 38454
Piobbico PU 15 2029 40483
Montone PG 16 1680 42163
Scheggia e Pascelupo PG 17 1393 43556
Cagli PU 17 8731 52287
CittĂ  di Castello PG 19 39913 92200

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
59 Km NW of Foligno (57155 inhabitants)
61 Km SW of Fano (60888 inhabitants)
61 Km SW of Pesaro (94582 inhabitants)
67 Km S of Rimini (147750 inhabitants)
78 Km S of Cesena (96758 inhabitants)
86 Km W of Ancona (100861 inhabitants)
92 Km SE of Forlì (117913 inhabitants)
94 Km E of Siena (53903 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 3.1
ML-VAX 2.0
1998-07-16
01:30:20
43.459 12.476 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 345579
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-07-16 01:30:20 ± 0.138
Latitude 43.4590 ± 0.0081
Longitude 12.4760 ± 0.0114
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 345579

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) 1285.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.02825
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 11
Type of magnitude Md
Reference to an origin 345579
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:23:39

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 345579
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
--.FVI.Z. 1998-07-16T01:31:11.52 10.0 undecidable manual PN 4 0.0283 1.13 0.1
--.PTCC.Z. 1998-07-16T01:31:09.16 10.0 undecidable manual PN 11 0.027 0.57 0.5
--.GRFL.Z. 1998-07-16T01:30:59.53 10.0 undecidable manual SN 254 0.0102 0.24 0.5
--.MNS.Z. 1998-07-16T01:30:57.84 10.0 undecidable manual SN 172 0.0097 -0.24 0.5
--.SDI.Z. 1998-07-16T01:30:54.92 10.0 undecidable manual PN 150 0.0181 0.1 1
--.CSNT.Z. 1998-07-16T01:30:50.56 10.0 undecidable manual SG 271 0.0077 -0.36 0.5
--.GU9.Z. 1998-07-16T01:30:50.80 10.0 undecidable manual PN 304 0.0146 1.2 0.1
--.NRCA.Z. 1998-07-16T01:30:49.87 10.0 undecidable manual SG 143 0.007 1.54 0
--.PII.Z. 1998-07-16T01:30:47.93 10.0 undecidable manual PN 281 0.0129 0.91 0.4
--.AQU.Z. 1998-07-16T01:30:45.20 10.0 undecidable manual PN 148 0.0117 -0.06 1.3
--.GRFL.Z. 1998-07-16T01:30:42.54 10.0 undecidable manual PN 254 0.0102 -0.33 1.2
--.MNS.Z. 1998-07-16T01:30:41.71 10.0 undecidable manual PN 172 0.0097 -0.46 1.1
--.RSM.Z. 1998-07-16T01:30:38.69 10.0 undecidable manual SG 358 0.0042 0.29 0.6
--.CSNT.Z. 1998-07-16T01:30:37.37 10.0 undecidable manual PG 271 0.0077 -0.67 0.8
--.ASS.Z. 1998-07-16T01:30:36.96 10.0 undecidable manual SG 162 0.0037 0.36 0.5
--.NRCA.Z. 1998-07-16T01:30:35.87 10.0 undecidable manual PG 143 0.007 -0.68 0.8
--.SNTG.Z. 1998-07-16T01:30:35.89 10.0 undecidable manual SG 121 0.0035 0.15 0.6
--.ARV.Z. 1998-07-16T01:30:33.42 10.0 undecidable manual SG 83 0.003 -0.3 0.5
--.FB9.Z. 1998-07-16T01:30:32.62 10.0 undecidable manual SG 43 0.0028 -0.24 0.6
--.SFI.Z. 1998-07-16T01:30:32.74 10.0 undecidable manual PG 314 0.0057 -1.15 0.2
--.RSM.Z. 1998-07-16T01:30:31.60 10.0 undecidable manual PG 358 0.0042 0.25 1.4
--.ASS.Z. 1998-07-16T01:30:29.58 10.0 negative manual PG 162 0.0037 -0.2 3
--.SNTG.Z. 1998-07-16T01:30:29.20 10.0 negative manual PG 121 0.0035 -0.26 2.8
--.CRE.Z. 1998-07-16T01:30:28.94 10.0 undecidable manual PG 293 0.0036 -0.75 0.7
--.ARV.Z. 1998-07-16T01:30:28.70 10.0 negative manual PG 83 0.003 -0.04 3.1
--.FB9.Z. 1998-07-16T01:30:27.41 10.0 positive manual PG 43 0.0028 -0.21 2.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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