Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 18-04-2014 and time 03:31:59 (UTC) in region 7 km E Pietralunga (PG)

A magnitude ML 1.7 earthquake occured in region: 7 km E Pietralunga (PG), on

  • 18-04-2014 03:31:59 (UTC)
  • 18-04-2014 05:31:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4380, 12.5260 at 8 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.

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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 7 2111 2111
Cantiano PU 9 2245 4356
Gubbio PG 10 32216 36572
Scheggia e Pascelupo PG 12 1393 37965
Cagli PU 16 8731 46696
Apecchio PU 16 1882 48578
Piobbico PU 17 2029 50607
Costacciaro PG 17 1216 51823
Montone PG 18 1680 53503
Frontone PU 19 1300 54803

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Perugia (166134 inhabitants)
52 Km E of Arezzo (99543 inhabitants)
56 Km N of Foligno (57155 inhabitants)
60 Km SW of Fano (60888 inhabitants)
61 Km SW of Pesaro (94582 inhabitants)
69 Km S of Rimini (147750 inhabitants)
81 Km S of Cesena (96758 inhabitants)
83 Km W of Ancona (100861 inhabitants)
96 Km SE of Forlì (117913 inhabitants)
97 Km E of Siena (53903 inhabitants)
98 Km N of Terni (111501 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 		ML 1.7 2014-04-18
03:31:59		 43.4385 12.526 9 2015-09-21
09:36:10		 Bollettino Sismico Italiano INGV 9312321
Reviewed
Rev100 		ML 1.7 2014-04-18
03:31:59		 43.4378 12.5267 8 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 6216751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-04-18 03:31:59 ± 0.04
Latitude 43.4385 ± 0.0018
Longitude 12.5260 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 9312321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 215
Semi-minor axis of confidence ellipse (meter) 131
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 151
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.07914
Epicentral distance of station farthest from the epicenter (degree) 0.60614
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 9312321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2014-11-11 09:44:17

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 6216751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-04-18 03:45:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2014-04-18T03:32:15.54 0.6 undecidable manual S 104 47.9187 50 0.51 42
IV.FSSB.HHZ. 2014-04-18T03:32:11.48 0.6 undecidable manual S 35 34.743 50 -0.01 48
IV.CSP1.EHZ. 2014-04-18T03:32:11.47 0.3 undecidable manual P 125 66.9774 50 0.2 65
IV.MGAB.HHZ. 2014-04-18T03:32:11.39 0.3 undecidable manual P 210 67.2771 50 0.08 67
IV.PARC.HHZ. 2014-04-18T03:32:11.36 0.6 undecidable manual S 315 32.8449 104 0.4 44
IV.ARVD.HHZ. 2014-04-18T03:32:11.39 0.6 undecidable manual S 79 34.1436 50 0.06 48
IV.FDMO.HHZ. 2014-04-18T03:32:10.55 0.6 undecidable manual P 134 63.5919 50 -0.2 44
IV.ATCC.EHZ. 2014-04-18T03:32:10.46 0.3 undecidable manual S 162 29.5482 106 0.59 63
IV.ATTE.HHZ. 2014-04-18T03:32:09.88 0.6 undecidable manual S 208 30.1476 106 -0.17 47
IV.MPAG.EHZ. 2014-04-18T03:32:09.47 0.3 undecidable manual S 42 28.2495 107 0.03 73
IV.CING.HHZ. 2014-04-18T03:32:09.19 1.0 undecidable manual P 97 54.4011 50 -0.14 23
IV.FOSV.EHZ. 2014-04-18T03:32:08.49 0.3 undecidable manual S 130 24.753 109 0.21 70
IV.COR1.EHZ. 2014-04-18T03:32:08.06 0.1 undecidable manual P 60 43.7229 50 0.37 88
IV.CAFI.HHZ. 2014-04-18T03:32:08.24 0.1 undecidable manual P 255 46.7199 50 0.09 92
IV.BADI.EHZ. 2014-04-18T03:32:08.19 0.3 undecidable manual S 289 24.0537 109 0.16 71
IV.EL6.EHZ. 2014-04-18T03:32:08.14 0.1 undecidable manual P 104 47.9187 50 -0.2 90
IV.SSFR.HHZ. 2014-04-18T03:32:07.04 0.3 undecidable manual S 91 20.6682 112 0.1 72
IV.FRON.EHZ. 2014-04-18T03:32:06.43 0.3 undecidable manual S 61 18.3705 115 0.23 71
IV.NARO.HHZ. 2014-04-18T03:32:06.51 0.3 undecidable manual S 13 19.5693 113 -0.1 73
IV.FSSB.HHZ. 2014-04-18T03:32:06.03 0.1 positive manual P 35 34.743 50 -0.27 91
IV.MURB.HHZ. 2014-04-18T03:32:06.88 0.3 undecidable manual S 180 19.4694 114 0.31 69
IV.SNTG.HHZ. 2014-04-18T03:32:06.67 0.6 undecidable manual P 121 39.1275 50 -0.31 45
IV.ATCC.EHZ. 2014-04-18T03:32:05.22 0.1 negative manual P 162 29.5482 106 -0.14 94
IV.ARVD.HHZ. 2014-04-18T03:32:05.93 0.1 positive manual P 79 34.1436 50 -0.27 91
IV.PE3.EHZ. 2014-04-18T03:32:05.35 0.3 undecidable manual P 355 28.6491 106 0.17 70
IV.ATTE.HHZ. 2014-04-18T03:32:05.02 0.6 undecidable manual P 208 30.1476 106 -0.44 44
IV.PARC.HHZ. 2014-04-18T03:32:05.75 0.6 undecidable manual P 315 32.8449 104 -0.24 46
IV.FOSV.EHZ. 2014-04-18T03:32:04.29 0.1 undecidable manual P 130 24.753 109 -0.15 95
IV.ATVO.HHZ. 2014-04-18T03:32:04.13 0.3 undecidable manual S 237 11.4774 126 -0.02 75
IV.ATMI.HHZ. 2014-04-18T03:32:04.49 0.6 undecidable manual P 241 23.754 110 0.23 47
IV.BADI.EHZ. 2014-04-18T03:32:04.20 0.3 undecidable manual P 289 24.0537 109 -0.1 72
IV.PIEI.HHZ. 2014-04-18T03:32:04.09 0.3 undecidable manual S 4 10.7781 128 0.13 73
IV.MPAG.EHZ. 2014-04-18T03:32:04.95 0.1 positive manual P 42 28.2495 107 -0.16 94
IV.SSFR.HHZ. 2014-04-18T03:32:03.60 0.1 positive manual P 91 20.6682 112 -0.07 97
IV.ATPI.EHZ. 2014-04-18T03:32:03.69 0.3 undecidable manual S 278 10.0788 130 -0.07 74
IV.FRON.EHZ. 2014-04-18T03:32:03.23 0.1 positive manual P 61 18.3705 115 -0.01 99
IV.NARO.HHZ. 2014-04-18T03:32:03.38 0.1 positive manual P 13 19.5693 113 -0.1 97
IV.MURB.HHZ. 2014-04-18T03:32:03.51 0.1 negative manual P 180 19.4694 114 0.06 98
IV.ATFO.HHZ. 2014-04-18T03:32:02.96 0.3 undecidable manual S 155 8.7801 134 -0.47 68
IV.PIEI.HHZ. 2014-04-18T03:32:02.09 0.3 undecidable manual P 4 10.7781 128 0.14 73
IV.ATVO.HHZ. 2014-04-18T03:32:02.03 0.1 undecidable manual P 237 11.4774 126 -0.02 100
IV.ATFO.HHZ. 2014-04-18T03:32:01.49 0.1 undecidable manual P 155 8.7801 134 -0.15 98
IV.ATPI.EHZ. 2014-04-18T03:32:01.85 0.1 positive manual P 278 10.0788 130 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:2.1 0.0006265000000000001 0.28 AML other m 2014-04-18T03:32:11.50
IV.ATCC.EHE. ML:2.0 0.000497 0.28 AML other m 2014-04-18T03:32:11.64
IV.ATMI.HHE. ML:1.8 0.0003765 0.36 AML other m 2014-04-18T03:32:11.66
IV.ATMI.HHN. ML:1.9 0.0004595 3 AML other m 2014-04-18T03:32:14.08
IV.ATPI.EHE. ML:2.1 0.001915 0.4 AML other m 2014-04-18T03:32:04.39
IV.ATPI.EHN. ML:2.0 0.0012900000000000001 2.42 AML other m 2014-04-18T03:32:06.65
IV.ATTE.HHN. ML:1.5 0.0001465 1.4 AML other m 2014-04-18T03:32:12.61
IV.ATTE.HHE. ML:1.7 0.00024349999999999998 0.34 AML other m 2014-04-18T03:32:11.12
IV.BADI.EHE. ML:1.8 0.0004005 0.3 AML other m 2014-04-18T03:32:09.50
IV.BADI.EHN. ML:1.9 0.000491 2.44 AML other m 2014-04-18T03:32:09.70
IV.CAFI.HHN. ML:1.3 0.00006095 0.58 AML other m 2014-04-18T03:32:15.45
IV.CAFI.HHE. ML:1.4 0.0000748 0.66 AML other m 2014-04-18T03:32:16.58
IV.CING.HHN. ML:1.6 0.00010284999999999999 2.8 AML other m 2014-04-18T03:32:19.39
IV.CING.HHE. ML:1.5 0.0000731 1.16 AML other m 2014-04-18T03:32:25.43
IV.CRE.HHN. ML:1.4 0.00006795 0.6 AML other m 2014-04-18T03:32:17.00
IV.CRE.HHE. ML:1.5 0.00007539999999999999 1.42 AML other m 2014-04-18T03:32:17.90
IV.FDMO.HHE. ML:1.5 0.0000594 0.14 AML other m 2014-04-18T03:32:22.62
IV.FDMO.HHN. ML:1.5 0.0000567 1.36 AML other m 2014-04-18T03:32:22.00
IV.MGAB.HHE. ML:1.9 0.00014000000000000001 1.46 AML other m 2014-04-18T03:32:24.11
IV.MGAB.HHN. ML:2.0 0.000158 0.26 AML other m 2014-04-18T03:32:24.93
IV.MURB.HHE. ML:2.3 0.0015049999999999998 0.74 AML other m 2014-04-18T03:32:08.51
IV.MURB.HNN. ML:2.2 0.00133 0.24 AML other m 2014-04-18T03:32:08.78
IV.MURB.HHN. ML:2.2 0.001385 0.2 AML other m 2014-04-18T03:32:09.83
IV.MURB.HNE. ML:2.2 0.001415 1.24 AML other m 2014-04-18T03:32:09.98
IV.NARO.HHN. ML:1.7 0.00040500000000000003 0.06 AML other m 2014-04-18T03:32:07.72
IV.NARO.HHE. ML:1.7 0.0003685 0.22 AML other m 2014-04-18T03:32:07.88
IV.PARC.HHE. ML:1.4 0.00012665 0.78 AML other m 2014-04-18T03:32:17.39
IV.PARC.HHN. ML:1.5 0.0001375 0.28 AML other m 2014-04-18T03:32:12.24
IV.SNTG.HHN. ML:1.9 0.000259 0.18 AML other m 2014-04-18T03:32:14.19
IV.SNTG.HHE. ML:1.6 0.0001545 3.46 AML other m 2014-04-18T03:32:14.02
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download