INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 18-05-2018 and time 02:33:32 (Italy) in region 5 km S Preci (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km S Preci (PG), on

  • 18-05-2018 00:33:32 (UTC)
  • 18-05-2018 02:33:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.04 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Preci PG 5 724 724
Norcia PG 6 4957 5681
Cerreto di Spoleto PG 10 1075 6756
Sellano PG 11 1079 7835
Castelsantangelo sul Nera MC 12 281 8116
Visso MC 12 1107 9223
Cascia PG 13 3217 12440
Ussita MC 15 444 12884
Poggiodomo PG 16 117 13001
Vallo di Nera PG 16 364 13365
Monte Cavallo MC 18 145 13510
Sant'Anatolia di Narco PG 20 564 14074

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
61 Km SE of Perugia (166134 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
98 Km W of Montesilvano (53738 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.0 2018-05-18
00:33:32
42.83 13.04 10 2018-05-18
00:41:02
Sala Sismica INGV-Roma 56967951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-18 00:33:32 ± 0.04
Latitude 42.83 ± 0.00
Longitude 13.04 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56967951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 245
Semi-minor axis of confidence ellipse (meter) 239
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 333
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 34
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
Epicentral distance of station farthest from the epicenter (degree) 0.46495
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 56967951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-18 00:41:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LIK.EHZ.01 2018-05-18T00:34:18.19 3.0 undecidable manual S 2.69 0
IV.CPGN.EHZ. 2018-05-18T00:34:07.05 3.0 undecidable manual S -1.65 0
IV.VIVA.HHZ. 2018-05-18T00:33:51.66 3.0 positive manual P -0.76 0
IV.EL6.EHZ. 2018-05-18T00:33:50.58 3.0 undecidable manual S -0.06 0
IV.TERO.HHZ. 2018-05-18T00:33:48.58 0.3 undecidable manual S 116 0.4649 50 -0.12 69
IV.CESX.HHZ. 2018-05-18T00:33:46.56 0.6 undecidable manual S 236 0.3984 50 -0.18 46
IV.MOMA.HHZ. 2018-05-18T00:33:45.42 0.1 undecidable manual S 266 0.3435 50 0.3 91
IV.RM33.EHZ. 2018-05-18T00:33:45.30 0.1 undecidable manual S 158 0.3471 50 0.1 95
IV.GUMA.HHZ. 2018-05-18T00:33:44.80 0.1 undecidable manual S 43 0.3184 50 0.45 88
IV.CSP1.EHZ. 2018-05-18T00:33:43.30 0.1 undecidable manual S 25 0.2878 50 -0.17 94
IV.SMA1.EHZ. 2018-05-18T00:33:43.51 0.6 undecidable manual S 132 0.2959 50 -0.2 47
IV.MTRA.EHZ. 2018-05-18T00:33:42.63 0.1 undecidable manual S 106 0.2734 50 -0.4 90
IV.TERO.HHZ. 2018-05-18T00:33:41.68 0.6 undecidable manual P 116 0.4649 50 -0.02 47
IV.MMO1.EHZ. 2018-05-18T00:33:41.07 0.1 undecidable manual S 72 0.223 111 -0.28 93
IV.T1219.HNE. 2018-05-18T00:33:41.08 0.3 undecidable manual S 354 0.2266 111 -0.41 68
IV.CESX.HHZ. 2018-05-18T00:33:40.96 0.6 undecidable manual P 236 0.3984 50 0.38 44
IV.CESI.HHZ. 2018-05-18T00:33:40.31 0.1 undecidable manual S 331 0.1996 114 -0.22 95
IV.FDMO.HHZ. 2018-05-18T00:33:40.68 0.1 undecidable manual S 10 0.2086 113 -0.18 96
IV.SMA1.EHZ. 2018-05-18T00:33:39.08 1.0 positive manual P 132 0.2959 50 0.26 23
OB.GAVE.EHZ. 2018-05-18T00:33:39.47 0.1 undecidable manual S 217 0.1736 117 -0.17 97
IV.GUMA.HHZ. 2018-05-18T00:33:39.18 0.1 undecidable manual P 43 0.3184 50 -0.01 97
IV.MOMA.HHZ. 2018-05-18T00:33:39.73 0.6 negative manual P 266 0.3435 50 0.09 47
IV.RM33.EHZ. 2018-05-18T00:33:39.80 1.0 negative manual P 158 0.3471 50 0.11 24
IV.FEMA.HNN. 2018-05-18T00:33:38.42 0.1 undecidable manual S 4 0.1313 123 0.2 97
IV.MTRA.EHZ. 2018-05-18T00:33:38.35 0.6 undecidable manual P 106 0.2734 50 -0.08 48
IV.MC2.EHN. 2018-05-18T00:33:38.78 0.1 undecidable manual S 54 0.1367 122 0.38 93
IV.CSP1.EHZ. 2018-05-18T00:33:38.55 1.0 positive manual P 25 0.2878 50 -0.14 24
IV.T1221.EHZ. 2018-05-18T00:33:38.47 0.1 undecidable manual S 282 0.143 121 -0.12 98
IV.FDMO.HHZ. 2018-05-18T00:33:37.08 0.3 negative manual P 10 0.2086 113 -0.1 73
IV.MMO1.EHZ. 2018-05-18T00:33:37.33 0.3 negative manual P 72 0.223 111 -0.13 72
IV.T1219.HNE. 2018-05-18T00:33:37.42 0.3 undecidable manual P 354 0.2266 111 -0.12 72
IV.MC2.EHN. 2018-05-18T00:33:36.00 0.1 undecidable manual P 54 0.1367 122 0.24 96
OB.GAVE.EHZ. 2018-05-18T00:33:36.46 0.1 positive manual P 217 0.1736 117 -0.01 100
IV.NRCA.HNZ. 2018-05-18T00:33:36.24 0.1 undecidable manual S 87 0.0558 147 0.11 100
IV.CESI.HHZ. 2018-05-18T00:33:36.94 0.1 negative manual P 331 0.1996 114 -0.05 98
IV.T1221.EHZ. 2018-05-18T00:33:35.93 0.3 positive manual P 282 0.143 121 0.06 74
IV.FEMA.HNN. 2018-05-18T00:33:35.96 0.1 undecidable manual P 4 0.1313 123 0.3 95
IV.NRCA.HNZ. 2018-05-18T00:33:34.68 0.6 negative manual P 87 0.0558 147 0.23 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.3 0.000307297 0.09 AML other m 2018-05-18T00:33:37.20
IV.NRCA.HHE. ML:1.3 0.0003200766 0.08 AML other m 2018-05-18T00:33:37.20
IV.NRCA.HHN. ML:1.2 0.00028644485 0.12 AML other m 2018-05-18T00:33:36.33
IV.NRCA.HNN. ML:1.2 0.00028442465 0.12 AML other m 2018-05-18T00:33:36.33
IV.T1221.EHE. ML:1.1 0.00010377645 0.08 AML other m 2018-05-18T00:33:38.63
IV.T1221.HNE. ML:1 9.6316745E-5 0.08 AML other m 2018-05-18T00:33:38.59
IV.T1221.EHN. ML:0.8 6.18282E-5 0.064 AML other m 2018-05-18T00:33:38.66
IV.T1221.HNN. ML:1 8.666374E-5 0.448 AML other m 2018-05-18T00:33:41.26
OB.GAVE.EHE. ML:1.4 0.0001951593 0.16 AML other m 2018-05-18T00:33:40.51
OB.GAVE.HNE. ML:1.4 0.000206803145 0.16 AML other m 2018-05-18T00:33:40.50
OB.GAVE.HNN. ML:1.4 0.00018051015 0.95 AML other m 2018-05-18T00:33:37.00
OB.GAVE.EHN. ML:1.3 0.0001693648 0.16 AML other m 2018-05-18T00:33:40.36
IV.CESI.HHE. ML:0.8 4.004067E-5 0.08 AML other m 2018-05-18T00:33:40.67
IV.CESI.HHN. ML:0.9 5.6843635E-5 0.16 AML other m 2018-05-18T00:33:40.67
IV.FDMO.HHE. ML:1.3 0.00011922575 0.2 AML other m 2018-05-18T00:33:40.82
IV.FDMO.HHN. ML:1 6.6607305E-5 0.28 AML other m 2018-05-18T00:33:40.79
IV.MTRA.EHE. ML:0.9 3.5558923E-5 0.14 AML other m 2018-05-18T00:33:43.92
IV.CSP1.EHE. ML:0.7 2.624253E-5 0.16 AML other m 2018-05-18T00:33:43.81
IV.CSP1.EHN. ML:0.4 9.8664695E-6 0.14 AML other m 2018-05-18T00:33:44.08
IV.SMA1.EHE. ML:0.7 2.2380215E-5 0.42 AML other m 2018-05-18T00:33:49.53
IV.SMA1.EHN. ML:0.8 2.544547E-5 0.32 AML other m 2018-05-18T00:33:48.29
IV.GUMA.HHN. ML:1.3 8.04142E-5 0.5 AML other m 2018-05-18T00:33:46.06
IV.GUMA.HHE. ML:1.1 5.00735E-5 0.22 AML other m 2018-05-18T00:33:47.15
IV.MOMA.HHN. ML:0.7 2.06124E-5 0.2 AML other m 2018-05-18T00:33:46.65
IV.MOMA.HHE. ML:0.9 2.961509E-5 0.16 AML other m 2018-05-18T00:33:46.53
IV.RM33.EHE. ML:0.6 1.555207E-5 0.16 AML other m 2018-05-18T00:33:46.72
IV.RM33.EHN. ML:0.7 1.9548255E-5 0.14 AML other m 2018-05-18T00:33:46.05
IV.CESX.HHN. ML:0.7 1.7061145E-5 0.26 AML other m 2018-05-18T00:33:49.14
IV.CESX.HHE. ML:0.8 1.959916E-5 0.22 AML other m 2018-05-18T00:33:48.44
IV.TERO.HNE. ML:2 0.000250731335 1.38 AML other m 2018-05-18T00:33:46.80
IV.TERO.HHE. ML:0.6 1.2356472E-5 0.08 AML other m 2018-05-18T00:33:50.48
IV.TERO.HHN. ML:0.8 1.5147955E-5 0.08 AML other m 2018-05-18T00:33:48.93
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download