ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.9 on date 18-02-2019 and time 20:19:54 (Italy) in region 3 km NE Amatrice (RI)

A magnitude ML 1.9 earthquake occured in region: 3 km NE Amatrice (RI), on

  • 18-02-2019 19:19:54 (UTC)
  • 18-02-2019 20:19:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.65, 13.3 at 12 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 3 2657 2657
Accumoli RI 6 667 3324
Cittareale RI 12 482 3806
Campotosto AQ 12 542 4348
Arquata del Tronto AP 13 1178 5526
Capitignano AQ 15 665 6191
Montereale AQ 15 2581 8772
Acquasanta Terme AP 16 2916 11688
Cortino TE 17 656 12344
Valle Castellana TE 19 977 13321
Crognaleto TE 19 1297 14618
Rocca Santa Maria TE 19 537 15155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Teramo (54892 inhabitants)
35 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
78 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
90 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 1.9 2019-02-18
19:19:54
42.65 13.3 12 2019-02-18
19:29:04
Sala Sismica INGV-Roma 65669081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-18 19:19:54 ± 0.05
Latitude 42.65 ± 0.00
Longitude 13.30 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65669081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 339
Semi-minor axis of confidence ellipse (meter) 64
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 32
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) 0.45506
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 65669081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-18 19:29:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHZ. 2019-02-18T19:21:10.40 0.3 undecidable manual S 320 0.4551 91 6.019 0
IV.GUMA.HHZ. 2019-02-18T19:21:09.90 0.3 undecidable manual S 4 0.4092 91 6.106 0
IV.FDMO.HHZ. 2019-02-18T19:21:09.40 0.3 undecidable manual S 338 0.4128 91 6.045 0
IV.MF5.EHZ. 2019-02-18T19:21:08.30 0.1 undecidable manual S 19 0.3534 92 6.112 0
IV.FIAM.HHZ. 2019-02-18T19:21:08.90 0.3 undecidable manual S 199 0.4092 91 6.006 0
IV.GAVE.EHZ. 2019-02-18T19:21:05.50 0.3 undecidable manual S 277 0.3013 92 5.986 0
IV.GIGS.HHZ. 2019-02-18T19:21:04.80 0.3 undecidable manual S 135 0.2833 92 5.967 0
IV.MC2.EHZ. 2019-02-18T19:21:04.90 0.1 undecidable manual S 342 0.2698 93 6.019 0
IV.MOMA.HHZ. 2019-02-18T19:20:14.48 3.0 undecidable manual S 0.21 0
IV.CESX.HHZ. 2019-02-18T19:20:13.07 3.0 undecidable manual S -0.11 0
IV.ASSB.HHZ. 2019-02-18T19:20:06.80 3.0 negative manual P 0.19 0
IV.MOMA.HHZ. 2019-02-18T19:20:05.34 3.0 negative manual P -0.2 0
IV.T0110.HHZ. 2019-02-18T19:20:05.31 3.0 negative manual P -0.52 0
IV.CESX.HHZ. 2019-02-18T19:20:04.74 3.0 undecidable manual P -0.19 0
IV.VCEL.EHZ. 2019-02-18T19:20:04.30 3.0 positive manual P -0.23 0
IV.MMO1.EHZ. 2019-02-18T19:20:04.00 0.1 undecidable manual S 4 0.2455 93 0 96
IV.NRCA.HNZ. 2019-02-18T19:20:03.00 0.1 undecidable manual S 323 0.2257 94 -0.4 89
IV.TERO.HHZ. 2019-02-18T19:20:03.10 0.1 undecidable manual S 98 0.2248 94 -0.28 92
IV.GUMA.HHZ. 2019-02-18T19:20:03.09 0.3 undecidable manual P 4 0.4092 91 0.42 64
IV.CESI.HHZ. 2019-02-18T19:20:03.39 0.1 undecidable manual P 320 0.4551 91 -0.07 91
IV.OFFI.HHZ. 2019-02-18T19:20:03.61 3.0 positive manual P 0.42 0
IV.FDMO.HHZ. 2019-02-18T19:20:02.64 0.3 undecidable manual P 338 0.4128 91 -0.1 69
IV.MF5.EHZ. 2019-02-18T19:20:02.24 0.1 undecidable manual P 19 0.3534 92 0.52 84
IV.LNSS.HHZ. 2019-02-18T19:20:02.50 0.1 undecidable manual S 255 0.1988 95 -0.1 95
IV.FIAM.HHZ. 2019-02-18T19:20:02.80 1.0 negative manual P 199 0.4092 91 0.12 23
IV.ARRO.EHZ. 2019-02-18T19:20:01.98 3.0 undecidable manual P -0.61 0
IV.RM33.EHZ. 2019-02-18T19:20:01.40 0.1 undecidable manual S 204 0.1583 99 -0.03 97
IV.MTRA.EHZ. 2019-02-18T19:20:00.10 0.1 undecidable manual S 34 0.1241 109 -0.34 94
IV.MC2.EHZ. 2019-02-18T19:20:00.42 0.1 undecidable manual P 342 0.2698 93 0.13 94
IV.CAMP.HHZ. 2019-02-18T19:20:00.80 0.1 undecidable manual S 146 0.143 103 -0.17 95
IV.GIGS.HHZ. 2019-02-18T19:20:00.44 0.1 undecidable manual P 135 0.2833 92 -0.09 94
IV.GAVE.EHZ. 2019-02-18T19:20:00.74 0.1 positive manual P 277 0.3013 92 -0.09 93
IV.MMO1.EHZ. 2019-02-18T19:19:59.95 0.3 negative manual P 4 0.2455 93 0.07 71
IV.LNSS.HHZ. 2019-02-18T19:19:59.13 0.1 positive manual P 255 0.1988 95 0.06 97
IV.NRCA.HNZ. 2019-02-18T19:19:59.49 0.3 negative manual P 323 0.2257 94 -0.05 72
IV.TERO.HHZ. 2019-02-18T19:19:59.49 1.0 undecidable manual P 98 0.2248 94 -0.04 24
IV.RM33.EHZ. 2019-02-18T19:19:58.57 0.1 positive manual P 204 0.1583 99 0.17 96
IV.CAMP.HHZ. 2019-02-18T19:19:58.32 0.3 negative manual P 146 0.143 103 0.19 71
IV.SMA1.EHZ. 2019-02-18T19:19:58.40 0.1 undecidable manual S 133 0.0351 157 -0.11 100
IV.MTRA.EHZ. 2019-02-18T19:19:57.86 1.0 undecidable manual P 34 0.1241 109 0.03 24
IV.SMA1.EHZ. 2019-02-18T19:19:56.96 0.1 undecidable manual P 133 0.0351 157 0.25 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0 0.004430352 0.1408 AML other m 2019-02-18T19:19:58.55
IV.SMA1.EHE. ML:0 0.003187041 0.0896 AML other m 2019-02-18T19:19:58.57
IV.MTRA.EHN. ML:0 0.0036688255 0.256 AML other m 2019-02-18T19:20:00.62
IV.MTRA.HNN. ML:0 0.0036301385 0.2688 AML other m 2019-02-18T19:20:00.62
IV.MTRA.HNE. ML:0 0.0022954845 0.2432 AML other m 2019-02-18T19:20:01.12
IV.MTRA.EHE. ML:0 0.0023293205 0.2688 AML other m 2019-02-18T19:20:01.13
IV.CAMP.HHN. ML:0 0.0004248331 0.2432 AML other m 2019-02-18T19:20:01.07
IV.CAMP.HHE. ML:0 0.0003443531 0.2432 AML other m 2019-02-18T19:20:01.06
IV.RM33.HNN. ML:0 0.000682562 0.1152 AML other m 2019-02-18T19:20:01.75
IV.RM33.EHN. ML:0 0.00066302755 0.128 AML other m 2019-02-18T19:20:01.75
IV.RM33.HNE. ML:0 0.00055059125 0.1536 AML other m 2019-02-18T19:20:02.32
IV.RM33.EHE. ML:0 0.00056310755 0.2944 AML other m 2019-02-18T19:20:01.68
IV.LNSS.HHE. ML:0 0.00082811935 0.1536 AML other m 2019-02-18T19:20:02.81
IV.TERO.HHN. ML:0 0.00059216275 0.1024 AML other m 2019-02-18T19:20:03.27
IV.NRCA.HHE. ML:0 0.0014272245 0.1664 AML other m 2019-02-18T19:20:03.28
IV.LNSS.HHN. ML:0 0.00062456855 0.1792 AML other m 2019-02-18T19:20:02.69
IV.TERO.HHE. ML:0 0.00074006055 0.1536 AML other m 2019-02-18T19:20:03.35
IV.NRCA.HHN. ML:0 0.0007655535 0.064 AML other m 2019-02-18T19:20:03.34
IV.GIGS.HHN. ML:0 6.144115E-5 0.1792 AML other m 2019-02-18T19:20:05.15
IV.GIGS.HHE. ML:0 5.1756985E-5 0.1536 AML other m 2019-02-18T19:20:06.20
IV.GAVE.EHE. ML:0 0.00061645655 0.128 AML other m 2019-02-18T19:20:06.36
IV.GAVE.EHN. ML:0 0.0007468782 0.2816 AML other m 2019-02-18T19:20:06.75
IV.MF5.EHN. ML:0 0.00041611555 0.3968 AML other m 2019-02-18T19:20:08.94
IV.MF5.EHE. ML:0 0.00032073635 0.4352 AML other m 2019-02-18T19:20:09.06
IV.FIAM.HHE. ML:0 3.5866165E-5 0.3072 AML other m 2019-02-18T19:20:09.34
IV.GUMA.HHN. ML:0 0.0004399121 0.2816 AML other m 2019-02-18T19:20:10.41
IV.CESI.HHE. ML:0 6.7088065E-5 0.1792 AML other m 2019-02-18T19:20:11.46
IV.FIAM.HHN. ML:0 3.145612E-5 0.7552 AML other m 2019-02-18T19:20:18.69
IV.GUMA.HNE. ML:0 0.00033176595 0.4864 AML other m 2019-02-18T19:20:11.60
IV.FDMO.HHN. ML:0 8.48955E-5 0.1792 AML other m 2019-02-18T19:20:12.00
IV.CESI.HHN. ML:0 0.00011912015 0.32 AML other m 2019-02-18T19:20:12.47
IV.GUMA.HHE. ML:0 0.00046497815 0.2944 AML other m 2019-02-18T19:20:12.63
IV.FDMO.HHE. ML:0 6.350121E-5 0.2048 AML other m 2019-02-18T19:20:13.54
IV.GUMA.HNN. ML:0 0.00208468955 1.3696 AML other m 2019-02-18T19:20:15.77
IV.LNSS.HNE. ML:2.1 0.0008308844 0.1664 AML other m 2019-02-18T19:20:02.81
IV.LNSS.HNN. ML:2 0.0006062679 0.1792 AML other m 2019-02-18T19:20:02.69
IV.NRCA.HNE. ML:2.4 0.001343855 0.1664 AML other m 2019-02-18T19:20:03.28
IV.NRCA.HNN. ML:2.1 0.00069982555 0.0768 AML other m 2019-02-18T19:20:03.33
IV.TERO.HNE. ML:1.8 0.0003753945 0.1536 AML other m 2019-02-18T19:20:03.35
IV.TERO.HNN. ML:1.6 0.00025343625 0.0896 AML other m 2019-02-18T19:20:03.27
IV.GAVE.HNE. ML:2.2 0.0006103563 0.128 AML other m 2019-02-18T19:20:06.29
IV.GAVE.HNN. ML:1.8 0.0002637078 0.3072 AML other m 2019-02-18T19:20:06.89
IV.ARRO.EHE. ML:1.6 0.00011697661 0.2304 AML other m 2019-02-18T19:20:10.37
IV.ARRO.EHN. ML:1.6 0.0001268989 0.1408 AML other m 2019-02-18T19:20:10.61
IV.OFFI.HHE. ML:2 0.0002683889 0.2816 AML other m 2019-02-18T19:20:11.77
IV.OFFI.HHN. ML:2.1 0.00040245325 0.2432 AML other m 2019-02-18T19:20:12.00
IV.VCEL.EHE. ML:1.9 0.0002082085 0.2688 AML other m 2019-02-18T19:20:14.12
IV.VCEL.EHN. ML:2 0.0002493055 0.192 AML other m 2019-02-18T19:20:14.11
IV.CESX.HHE. ML:1.4 5.7246195E-5 0.3712 AML other m 2019-02-18T19:20:15.36
IV.CESX.HHN. ML:1.6 8.7702515E-5 0.1664 AML other m 2019-02-18T19:20:14.79
IV.T0110.HHE. ML:1.7 9.585062E-5 0.4352 AML other m 2019-02-18T19:20:20.72
IV.T0110.HHN. ML:1.7 0.000106797055 0.4352 AML other m 2019-02-18T19:20:17.32
IV.MOMA.HHE. ML:2 0.00017598715 0.256 AML other m 2019-02-18T19:20:15.62
IV.MOMA.HHN. ML:1.9 0.000165517 0.3456 AML other m 2019-02-18T19:20:15.11
IV.ASSB.HHE. ML:1.6 6.6187995E-5 0.1664 AML other m 2019-02-18T19:20:17.50
IV.ASSB.HHN. ML:1.6 6.8206675E-5 0.1536 AML other m 2019-02-18T19:20:17.32
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