INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.4 on date 11-05-2018 and time 06:27:13 (Italy) in region 1 km SE Amatrice (RI)

A magnitude ML 1.4 earthquake occured in region: 1 km SE Amatrice (RI), on

  • 11-05-2018 04:27:13 (UTC)
  • 11-05-2018 06:27:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.3 at 8 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
Amatrice RI 1 2657 2657
Campotosto AQ 9 542 3199
Accumoli RI 9 667 3866
Capitignano AQ 11 665 4531
Cittareale RI 11 482 5013
Montereale AQ 11 2581 7594
Crognaleto TE 17 1297 8891
Cortino TE 17 656 9547
Arquata del Tronto AP 17 1178 10725
Borbona RI 18 617 11342
Barete AQ 19 737 12079
Cagnano Amiterno AQ 19 1369 13448
Acquasanta Terme AP 19 2916 16364
Posta RI 20 694 17058

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of L'Aquila (69753 inhabitants)
34 Km W of Teramo (54892 inhabitants)
54 Km E of Terni (111501 inhabitants)
61 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
77 Km W of Pescara (121014 inhabitants)
77 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
92 Km SE of Perugia (166134 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 1.4 2018-05-11
04:27:13
42.62 13.3 8 2018-05-11
04:33:06
Sala Sismica INGV-Roma 56746761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-11 04:27:13 ± 0.09
Latitude 42.62 ± 0.00
Longitude 13.30 ± 0.01
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56746761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 526
Semi-minor axis of confidence ellipse (meter) 335
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 128
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.51351
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 56746761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-11 04:33:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APRC.HHZ. 2018-05-11T04:27:44.92 3.0 undecidable manual Pg 4.37 0
IV.LPEL.HHZ. 2018-05-11T04:27:41.53 3.0 undecidable manual Sn 0.15 0
IV.SACS.HHZ. 2018-05-11T04:27:40.50 3.0 undecidable manual Sg 3.94 0
IV.IMOL.HNZ. 2018-05-11T04:27:36.93 3.0 positive manual Pn -0.87 0
IV.PP3.HNZ. 2018-05-11T04:27:32.83 3.0 undecidable manual Sg 0.15 0
IV.CESI.HHZ. 2018-05-11T04:27:31.41 0.6 undecidable manual S 323 0.4811 50 0.36 44
IV.GUMA.HHZ. 2018-05-11T04:27:30.44 0.1 undecidable manual S 3 0.4434 50 0.52 85
IV.CSP1.EHZ. 2018-05-11T04:27:30.95 0.1 undecidable manual S 352 0.4766 50 0.04 94
IV.FDMO.HHZ. 2018-05-11T04:27:30.04 0.1 undecidable manual S 340 0.4443 50 0.09 93
IV.EL6.EHZ. 2018-05-11T04:27:27.91 3.0 undecidable manual Sg -1.07 0
IV.MC2.EHZ. 2018-05-11T04:27:26.01 0.3 undecidable manual S 345 0.3022 103 0.41 67
OB.GAVE.EHZ. 2018-05-11T04:27:25.21 0.6 undecidable manual S 284 0.3058 103 -0.54 43
IV.VIVA.HHZ. 2018-05-11T04:27:24.20 3.0 negative manual Pn -2.18 0
IV.T0110.HHZ. 2018-05-11T04:27:24.19 3.0 undecidable manual Pg 2.03 0
IV.MMO1.EHZ. 2018-05-11T04:27:24.54 0.3 undecidable manual S 4 0.2797 104 -0.23 70
IV.MML1.EHZ. 2018-05-11T04:27:24.69 3.0 undecidable manual Sg 0.48 0
IV.OFFI.HHZ. 2018-05-11T04:27:23.45 3.0 undecidable manual Pg 4.9 0
IV.NRCA.HHZ. 2018-05-11T04:27:23.77 0.3 undecidable manual S 328 0.2527 106 0.01 74
IV.GUMA.HHZ. 2018-05-11T04:27:23.05 0.1 undecidable manual P 3 0.4434 50 0.01 95
IV.CESI.HHZ. 2018-05-11T04:27:23.49 0.6 undecidable manual P 323 0.4811 50 -0.2 45
IV.CSP1.EHZ. 2018-05-11T04:27:23.39 0.1 undecidable manual P 352 0.4766 50 -0.22 90
IV.T1220.EHZ. 2018-05-11T04:27:23.92 0.1 undecidable manual P 343 0.5135 50 -0.32 88
IV.FDMO.HHZ. 2018-05-11T04:27:22.82 0.3 undecidable manual P 340 0.4443 50 -0.24 68
IV.MF5.EHZ. 2018-05-11T04:27:22.19 3.0 undecidable manual Sn -1.71 0
IV.T1221.EHZ. 2018-05-11T04:27:21.74 3.0 undecidable manual P 0
IV.T1221.EHZ. 2018-05-11T04:27:21.51 3.0 undecidable manual Sg 0.38 0
IV.LNSS.HHZ. 2018-05-11T04:27:21.84 0.3 undecidable manual S 265 0.1916 111 0.34 70
IV.MC2.EHZ. 2018-05-11T04:27:20.56 0.1 undecidable manual P 345 0.3022 103 0.01 97
OB.GAVE.EHZ. 2018-05-11T04:27:20.37 0.1 undecidable manual P 284 0.3058 103 -0.26 92
IV.APEC.HHZ. 2018-05-11T04:27:20.49 3.0 negative manual Pg -4.45 0
IV.MMO1.EHZ. 2018-05-11T04:27:19.90 0.1 undecidable manual P 4 0.2797 104 -0.17 95
IV.GIGS.HHZ. 2018-05-11T04:27:19.18 3.0 undecidable manual P 0.59 0
IV.RM33.EHZ. 2018-05-11T04:27:19.31 0.6 undecidable manual S 209 0.1277 119 0.04 50
IV.MTRA.EHZ. 2018-05-11T04:27:19.98 0.6 undecidable manual S 28 0.1538 115 -0.21 48
IV.NRCA.HHZ. 2018-05-11T04:27:19.40 0.1 undecidable manual P 328 0.2527 106 -0.09 97
IV.TERO.HHZ. 2018-05-11T04:27:18.39 3.0 undecidable manual P 0.7 0
IV.LNSS.HHZ. 2018-05-11T04:27:18.31 0.3 undecidable manual P 265 0.1916 111 0.13 73
IV.MTRA.EHZ. 2018-05-11T04:27:17.38 1.0 undecidable manual P 28 0.1538 115 -0.04 25
IV.FOSV.EHZ. 2018-05-11T04:27:16.51 3.0 positive manual P -3.65 0
IV.SMA1.EHZ. 2018-05-11T04:27:16.66 0.6 undecidable manual S 69 0.0288 158 0.05 51
IV.T1299.EHZ. 2018-05-11T04:27:16.61 0.6 undecidable manual S 319 0.0189 165 0.12 50
IV.RM33.EHZ. 2018-05-11T04:27:16.94 0.1 positive manual P 209 0.1277 119 0.05 100
IV.SMA1.EHZ. 2018-05-11T04:27:15.54 0.1 undecidable manual P 69 0.0288 158 0.18 99
IV.T1299.EHZ. 2018-05-11T04:27:15.44 1.0 undecidable manual P 319 0.0189 165 0.15 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0 0.00523 1.84 AML other m 2018-05-11T04:27:16.04
IV.SMA1.EHE. ML:0 0.00556 1.82 AML other m 2018-05-11T04:27:16.99
IV.RM33.EHE. ML:1.4 0.0002455 0.48 AML other m 2018-05-11T04:27:19.63
IV.MTRA.HNE. ML:1.6 0.0003405 0.28 AML other m 2018-05-11T04:27:20.30
IV.MTRA.EHE. ML:1.6 0.0003475 0.08 AML other m 2018-05-11T04:27:20.30
IV.MTRA.HNN. ML:1.6 0.000324 0.56 AML other m 2018-05-11T04:27:20.33
IV.RM33.EHN. ML:1.2 0.000164 0.74 AML other m 2018-05-11T04:27:20.40
IV.MTRA.EHN. ML:1.4 0.0002475 0.4 AML other m 2018-05-11T04:27:20.42
IV.TERO.HHE. ML:1.6 0.0002165 0.26 AML other m 2018-05-11T04:27:22.34
IV.TERO.HHN. ML:1.8 0.0003585 0.24 AML other m 2018-05-11T04:27:22.45
IV.LNSS.HHE. ML:1.4 0.0001815 0.8 AML other m 2018-05-11T04:27:22.33
IV.LNSS.HHN. ML:1.2 0.000127 1.5 AML other m 2018-05-11T04:27:22.88
IV.GIGS.HHE. ML:0.7 2.47E-5 0.62 AML other m 2018-05-11T04:27:24.47
IV.NRCA.HHN. ML:1.5 0.000164 0.14 AML other m 2018-05-11T04:27:24.41
IV.NRCA.HHE. ML:1.6 0.0002185 1 AML other m 2018-05-11T04:27:24.42
IV.GIGS.HHN. ML:0.5 1.725E-5 0.84 AML other m 2018-05-11T04:27:24.43
OB.GAVE.EHE. ML:1.3 8.625E-5 0.16 AML other m 2018-05-11T04:27:25.63
OB.GAVE.EHN. ML:1.4 0.00010475 0.76 AML other m 2018-05-11T04:27:26.69
IV.FDMO.HHE. ML:1 2.875E-5 1.78 AML other m 2018-05-11T04:27:30.03
IV.GUMA.HHE. ML:1.7 0.000125 1.76 AML other m 2018-05-11T04:27:30.98
IV.GUMA.HHN. ML:1.6 0.00011195 0.36 AML other m 2018-05-11T04:27:31.38
IV.FDMO.HHN. ML:1 2.57E-5 0.42 AML other m 2018-05-11T04:27:32.88
IV.MML1.EHN. ML:1 2.135E-5 0.74 AML other m 2018-05-11T04:27:33.54
IV.MML1.EHE. ML:0.9 1.635E-5 1.24 AML other m 2018-05-11T04:27:36.76
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