Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 01-04-2014 and time 10:23:12 (Italy) in region 5 km NW Pietralunga (PG)

A magnitude ML 1.7 earthquake occured in region: 5 km NW Pietralunga (PG), on

  • 01-04-2014 08:23:12 (UTC)
  • 01-04-2014 10:23:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4840, 12.4030 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.

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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 5 2111 2111
Apecchio PU 9 1882 3993
Città di Castello PG 14 39913 43906
Montone PG 15 1680 45586
Piobbico PU 15 2029 47615
Cantiano PU 18 2245 49860
Mercatello sul Metauro PU 19 1378 51238
San Giustino PG 20 11297 62535

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Perugia (166134 inhabitants)
42 Km E of Arezzo (99543 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km S of Rimini (147750 inhabitants)
74 Km S of Cesena (96758 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
88 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
98 Km E of Firenze (382808 inhabitants)
99 Km SE of Faenza (58541 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 2014-04-01
08:23:12		 43.4837 12.4032 10 2015-09-21
09:36:10		 Bollettino Sismico Italiano INGV 8666741
Reviewed
Rev100 		ML 1.6 2014-04-01
08:23:12		 43.485 12.3998 9 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 6031251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-04-01 08:23:12 ± 0.05
Latitude 43.4837 ± 0.0027
Longitude 12.4032 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 8666741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 271
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 160
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.34174
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 8666741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2014-10-03 11:34:24

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 6031251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-04-01 08:43:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FSSB.HHZ. 2014-04-01T08:23:25.46 0.3 undecidable manual S 52 37.9287 50 0.43 66
IV.SSFR.HHZ. 2014-04-01T08:23:23.16 0.3 undecidable manual S 100 30.9468 50 0 73
IV.ATTE.HHZ. 2014-04-01T08:23:23.09 0.3 undecidable manual S 187 31.9458 50 -0.33 68
IV.MPAG.EHZ. 2014-04-01T08:23:23.68 0.3 undecidable manual S 60 32.8449 50 0.01 72
IV.MURB.HHZ. 2014-04-01T08:23:22.23 0.3 undecidable manual S 158 26.3514 110 0.41 67
IV.FRON.EHZ. 2014-04-01T08:23:21.66 0.1 undecidable manual S 82 26.2515 110 -0.12 96
IV.PARC.HHZ. 2014-04-01T08:23:20.95 0.1 undecidable manual S 324 22.5552 113 0.35 92
IV.ATMI.HHZ. 2014-04-01T08:23:19.89 0.3 undecidable manual S 213 19.869 116 0.16 72
IV.FSSB.HHZ. 2014-04-01T08:23:19.57 0.3 negative manual P 52 37.9287 50 0.01 72
IV.NARO.HHZ. 2014-04-01T08:23:19.52 0.3 undecidable manual S 45 20.0688 115 -0.28 70
IV.ATFO.HHZ. 2014-04-01T08:23:19.60 0.3 undecidable manual S 134 18.7701 117 0.2 71
IV.SSFR.HHZ. 2014-04-01T08:23:18.28 0.3 positive manual P 100 30.9468 50 -0.2 70
IV.ATTE.HHZ. 2014-04-01T08:23:18.60 0.3 negative manual P 187 31.9458 50 -0.04 72
IV.MPAG.EHZ. 2014-04-01T08:23:18.64 0.1 positive manual P 60 32.8449 50 -0.14 94
IV.PIEI.HHZ. 2014-04-01T08:23:17.69 0.1 undecidable manual S 61 12.0768 128 0.26 95
IV.MURB.HHZ. 2014-04-01T08:23:17.74 0.1 positive manual P 158 26.3514 110 0.03 97
IV.BADI.EHZ. 2014-04-01T08:23:17.54 0.3 undecidable manual S 283 13.0758 126 -0.18 72
IV.PARC.HHZ. 2014-04-01T08:23:17.02 0.1 positive manual P 324 22.5552 113 0.01 98
IV.ATVO.HHZ. 2014-04-01T08:23:17.38 0.3 undecidable manual S 179 11.2776 130 0.17 73
IV.FRON.EHZ. 2014-04-01T08:23:17.55 0.1 positive manual P 82 26.2515 110 -0.13 95
IV.ATFO.HHZ. 2014-04-01T08:23:16.36 0.3 positive manual P 134 18.7701 117 0.05 74
IV.ATMI.HHZ. 2014-04-01T08:23:16.48 0.3 positive manual P 213 19.869 116 -0.02 74
IV.NARO.HHZ. 2014-04-01T08:23:16.37 0.1 positive manual P 45 20.0688 115 -0.17 96
IV.ATVO.HHZ. 2014-04-01T08:23:15.25 0.3 positive manual P 179 11.2776 130 0.2 72
IV.PIEI.HHZ. 2014-04-01T08:23:15.25 0.3 positive manual P 61 12.0768 128 0.08 74
IV.ATPI.EHZ. 2014-04-01T08:23:15.15 0.1 undecidable manual S 181 3.6963 159 -0.49 92
IV.BADI.EHZ. 2014-04-01T08:23:15.35 0.1 positive manual P 283 13.0758 126 0.01 100
IV.ATPI.EHZ. 2014-04-01T08:23:14.03 0.3 positive manual P 181 3.6963 159 -0.11 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.2 0.0000544 0.96 AML other m 2014-04-01T08:23:27.75
IV.ARVD.HHE. ML:1.1 0.0000413 0.62 AML other m 2014-04-01T08:23:27.40
IV.ATFO.HHE. ML:1.4 0.00020800000000000001 0.86 AML other m 2014-04-01T08:23:20.41
IV.ATFO.HHN. ML:1.4 0.000182 0.36 AML other m 2014-04-01T08:23:21.06
IV.ATMI.HHN. ML:1.6 0.0003205 0.3 AML other m 2014-04-01T08:23:22.65
IV.ATMI.HHE. ML:1.5 0.00023299999999999997 1.24 AML other m 2014-04-01T08:23:25.55
IV.ATPI.EHE. ML:2.0 0.0017000000000000001 0.44 AML other m 2014-04-01T08:23:15.23
IV.ATPI.EHN. ML:1.9 0.0015799999999999998 0.18 AML other m 2014-04-01T08:23:15.31
IV.ATTE.HHE. ML:1.3 0.00008735000000000001 0.62 AML other m 2014-04-01T08:23:24.14
IV.ATTE.HHN. ML:1.3 0.00008325 1.1 AML other m 2014-04-01T08:23:24.10
IV.ATVO.HHN. ML:1.6 0.00046199999999999995 1.18 AML other m 2014-04-01T08:23:18.06
IV.ATVO.HHE. ML:1.8 0.0007385 0.46 AML other m 2014-04-01T08:23:17.61
IV.BADI.EHN. ML:1.8 0.0007905 0.62 AML other m 2014-04-01T08:23:17.93
IV.BADI.EHE. ML:1.8 0.000753 0.5 AML other m 2014-04-01T08:23:18.23
IV.CRE.HHE. ML:1.4 0.0000783 0.6 AML other m 2014-04-01T08:23:26.62
IV.CRE.HHN. ML:1.4 0.0000892 1.5 AML other m 2014-04-01T08:23:27.06
IV.FSSB.HHN. ML:1.6 0.0001605 0.36 AML other m 2014-04-01T08:23:26.43
IV.FSSB.HHE. ML:1.6 0.00013350000000000002 0.6 AML other m 2014-04-01T08:23:26.59
IV.MURB.HHE. ML:1.9 0.00041200000000000004 0.28 AML other m 2014-04-01T08:23:24.40
IV.MURB.HHN. ML:1.8 0.00034050000000000004 0.72 AML other m 2014-04-01T08:23:23.04
IV.NARO.HHE. ML:1.8 0.00041700000000000005 0.06 AML other m 2014-04-01T08:23:20.15
IV.NARO.HHN. ML:1.4 0.0001915 0.28 AML other m 2014-04-01T08:23:20.20
IV.PARC.HHN. ML:1.3 0.00014749999999999998 0.26 AML other m 2014-04-01T08:23:21.55
IV.PARC.HHE. ML:1.3 0.00011899999999999999 0.3 AML other m 2014-04-01T08:23:21.77
IV.PE3.EHE. ML:1.9 0.0004955 0.42 AML other m 2014-04-01T08:23:23.31
IV.PE3.EHN. ML:1.9 0.0004935 0.56 AML other m 2014-04-01T08:23:50.54
IV.PIEI.HHE. ML:1.9 0.001004 0.22 AML other m 2014-04-01T08:23:18.19
IV.PIEI.HHN. ML:1.9 0.0008539999999999999 0.18 AML other m 2014-04-01T08:23:18.16
IV.SSFR.HHN. ML:1.8 0.0003175 0.9 AML other m 2014-04-01T08:23:23.27
IV.SSFR.HHE. ML:1.8 0.0003125 0.6 AML other m 2014-04-01T08:23:24.00
IV.SSFR.HNE. ML:2.0 0.000475 0.6 AML other m 2014-04-01T08:23:24.00
IV.SSFR.HNN. ML:6.5 14.457 1.32 AML other m 2014-04-01T08:24:02.84
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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