Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 04-03-2018 and time 01:25:51 (Italy) in region 4 km N Preci (PG)

A magnitude ML 1.9 earthquake occured in region: 4 km N Preci (PG), on

  • 04-03-2018 00:25:51 (UTC)
  • 04-03-2018 01:25:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9190, 13.0310 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
Preci PG 4 724 724
Visso MC 5 1107 1831
Monte Cavallo MC 9 145 1976
Sellano PG 9 1079 3055
Ussita MC 9 444 3499
Castelsantangelo sul Nera MC 10 281 3780
Fiordimonte MC 14 202 3982
Pieve Torina MC 14 1458 5440
Cerreto di Spoleto PG 14 1075 6515
Norcia PG 15 4957 11472
Pievebovigliana MC 17 866 12338
Fiastra MC 17 559 12897
Acquacanina MC 17 121 13018
Bolognola MC 18 142 13160
Muccia MC 18 915 14075
Serravalle di Chienti MC 18 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 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 1.9 2018-03-04
00:25:51		 42.9187 13.0307 10 2019-04-24
14:49:21		 Bollettino Sismico Italiano INGV 54659271
Reviewed
Rev100 		ML 2.3 2018-03-04
00:25:51		 42.9187 13.0265 9 2018-03-04
00:31:42		 Sala Sismica INGV-Roma 54304621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-03-04 00:25:51 ± 0.06
Latitude 42.9187 ± 0.0036
Longitude 13.0307 ± 0.0049
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 54659271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 344
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.50452
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 54659271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-26 07:09:05

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 54304621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-03-04 00:31:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2018-03-04T00:26:09.75 0.3 undecidable manual S 313 55.9995 50 1 51
IV.CESX.HHE. 2018-03-04T00:26:07.34 0.6 undecidable manual S 227 49.9167 50 0.22 45
IV.RM33.EHZ. 2018-03-04T00:26:07.07 0.6 undecidable manual S 162 47.8188 50 0.5 42
IV.FOSV.EHZ. 2018-03-04T00:26:06.32 0.6 undecidable manual S 332 47.1195 50 -0.05 47
IV.EL6.EHZ. 2018-03-04T00:26:06.26 0.6 undecidable manual S 7 45.9207 50 0.21 45
IV.ARRO.EHZ. 2018-03-04T00:26:05.55 0.6 undecidable manual S 210 43.4232 50 0.16 46
IV.SMA1.EHZ. 2018-03-04T00:26:04.58 0.6 undecidable manual S 142 40.4262 50 -0.02 47
IV.MOMA.HNZ. 2018-03-04T00:26:04.84 0.6 undecidable manual S 251 39.5271 50 0.48 43
IV.MF5.EHZ. 2018-03-04T00:26:04.08 0.3 undecidable manual S 77 35.6421 50 0.76 58
IV.SNTG.HHZ. 2018-03-04T00:26:03.63 0.6 undecidable manual S 349 38.0286 50 -0.31 45
IV.LNSS.HHZ. 2018-03-04T00:26:03.22 0.6 undecidable manual S 179 35.0427 50 0.07 47
IV.GUMA.HHZ. 2018-03-04T00:26:02.00 0.3 undecidable manual S 57 29.4483 50 0.34 68
IV.MURB.HHZ. 2018-03-04T00:26:01.14 0.1 undecidable manual P 313 55.9995 50 -0.14 90
IV.PF6.EHN. 2018-03-04T00:26:00.80 0.6 undecidable manual S 29 27.6501 50 -0.39 45
IV.RM33.EHZ. 2018-03-04T00:25:59.59 0.3 undecidable manual P 162 47.8188 50 -0.43 64
IV.FOSV.EHZ. 2018-03-04T00:25:59.60 0.1 undecidable manual P 332 47.1195 50 -0.3 88
IV.CESX.HHE. 2018-03-04T00:25:59.91 0.3 undecidable manual P 227 49.9167 50 -0.43 64
IV.MMO1.EHZ. 2018-03-04T00:25:59.89 0.1 undecidable manual S 95 24.1536 112 -0.23 93
IV.CSP1.EHZ. 2018-03-04T00:25:59.76 0.6 undecidable manual S 36 23.8539 112 -0.26 46
IV.EL6.EHZ. 2018-03-04T00:25:59.50 0.1 undecidable manual P 7 45.9207 50 -0.22 90
IV.ARRO.EHZ. 2018-03-04T00:25:59.29 0.3 undecidable manual P 210 43.4232 50 -0.05 70
IV.SNTG.HHZ. 2018-03-04T00:25:58.17 0.3 undecidable manual P 349 38.0286 50 -0.33 67
IV.SMA1.EHZ. 2018-03-04T00:25:58.44 0.3 undecidable manual P 142 40.4262 50 -0.44 65
IV.MOMA.HNZ. 2018-03-04T00:25:58.62 0.3 undecidable manual P 251 39.5271 50 -0.12 70
IV.MF5.EHZ. 2018-03-04T00:25:58.37 0.1 positive manual P 77 35.6421 50 0.23 92
IV.GUMA.HHZ. 2018-03-04T00:25:57.27 0.1 positive manual P 57 29.4483 50 0.09 95
IV.LNSS.HHZ. 2018-03-04T00:25:57.79 0.1 undecidable manual P 179 35.0427 50 -0.26 91
IV.CESI.HHE. 2018-03-04T00:25:57.04 0.3 undecidable manual S 313 13.9749 125 0.03 74
IV.NRCA.HNZ. 2018-03-04T00:25:56.36 0.1 undecidable manual S 144 11.6772 130 0 100
IV.MMO1.EHZ. 2018-03-04T00:25:56.13 0.1 positive manual P 95 24.1536 112 -0.17 95
IV.MC2.EHZ. 2018-03-04T00:25:56.99 0.6 undecidable manual S 94 12.876 127 0.29 47
IV.CSP1.EHZ. 2018-03-04T00:25:56.09 0.1 positive manual P 36 23.8539 112 -0.15 95
IV.PF6.EHN. 2018-03-04T00:25:56.66 0.3 undecidable manual P 29 27.6501 50 -0.25 69
IV.FEMA.HNZ. 2018-03-04T00:25:55.13 0.6 undecidable manual S 18 5.0949 153 0.22 48
IV.CESI.HHE. 2018-03-04T00:25:54.61 0.1 undecidable manual P 313 13.9749 125 0.11 97
IV.NRCA.HNZ. 2018-03-04T00:25:54.26 0.1 negative manual P 144 11.6772 130 0.14 97
IV.MC2.EHZ. 2018-03-04T00:25:54.52 0.1 undecidable manual P 94 12.876 127 0.2 96
IV.FEMA.HNZ. 2018-03-04T00:25:53.59 0.1 negative manual P 18 5.0949 153 0.3 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.2 0.0026610525 0.17 AML other m 2018-03-04T00:25:55.44
IV.FEMA.HNN. ML:2.1 0.0021235625000000004 0.11 AML other m 2018-03-04T00:25:55.87
IV.NRCA.HNN. ML:2.6 0.004409545 0.11 AML other m 2018-03-04T00:25:56.48
IV.NRCA.HHN. ML:2.6 0.004642018 0.12 AML other m 2018-03-04T00:25:56.48
IV.NRCA.HHE. ML:2.4 0.0026754435 0.08 AML other m 2018-03-04T00:25:56.65
IV.NRCA.HNE. ML:2.3 0.00249076 0.09 AML other m 2018-03-04T00:25:56.65
IV.CSP1.EHE. ML:1.5 0.00018655247499999998 0.14 AML other m 2018-03-04T00:26:00.37
IV.CSP1.EHN. ML:1.1 0.00007907508 0.2 AML other m 2018-03-04T00:26:01.12
OB.GAVE.EHN. ML:0.0 0.00016254649499999999 0.16 AML other m 2018-03-04T00:26:01.90
OB.GAVE.EHE. ML:0.0 0.00028827934999999997 0.14 AML other m 2018-03-04T00:26:01.58
OB.GAVE.HNE. ML:0.0 0.0002796806 0.14 AML other m 2018-03-04T00:26:01.58
IV.GUMA.HHE. ML:2.1 0.0006070130499999999 0.16 AML other m 2018-03-04T00:26:02.05
IV.GUMA.HHN. ML:2.0 0.00045179735 0.28 AML other m 2018-03-04T00:26:02.29
IV.GUMA.HNE. ML:2.0 0.0004683775 0.2 AML other m 2018-03-04T00:26:03.95
IV.GUMA.HNN. ML:2.3 0.00091941085 0.19 AML other m 2018-03-04T00:26:02.04
IV.LNSS.HHN. ML:1.6 0.0001808187 0.12 AML other m 2018-03-04T00:26:04.31
IV.LNSS.HHE. ML:1.5 0.000133688375 0.14 AML other m 2018-03-04T00:26:04.36
IV.SNTG.HHN. ML:1.5 0.000103064625 0.12 AML other m 2018-03-04T00:26:04.76
IV.SNTG.HHE. ML:1.6 0.0001484874 0.26 AML other m 2018-03-04T00:26:04.82
IV.SMA1.EHE. ML:1.6 0.000126984735 0.38 AML other m 2018-03-04T00:26:09.25
IV.FOSV.EHE. ML:1.6 0.00009908244500000001 0.2 AML other m 2018-03-04T00:26:06.58
IV.FOSV.EHN. ML:1.4 0.000078134175 0.4 AML other m 2018-03-04T00:26:08.73
IV.MURB.HHN. ML:2.0 0.0002075455 0.18 AML other m 2018-03-04T00:26:10.62
IV.MURB.HNN. ML:2.1 0.00026389260000000004 0.21 AML other m 2018-03-04T00:26:10.61
IV.MURB.HHE. ML:2.0 0.000199028065 0.22 AML other m 2018-03-04T00:26:10.39
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
Waveforms Seismic signals in miniseed + resp format Download