Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 18-02-2018 and time 06:31:51 (Italy) in region 5 km SW Amatrice (RI)

A magnitude ML 2.0 earthquake occured in region: 5 km SW Amatrice (RI), on

  • 18-02-2018 05:31:51 (UTC)
  • 18-02-2018 06:31:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5930, 13.2520 at 11 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.

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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
Amatrice RI 5 2657 2657
Montereale AQ 8 2581 5238
Cittareale RI 8 482 5720
Capitignano AQ 9 665 6385
Campotosto AQ 10 542 6927
Accumoli RI 12 667 7594
Borbona RI 13 617 8211
Posta RI 15 694 8905
Cagnano Amiterno AQ 15 1369 10274
Barete AQ 16 737 11011
Pizzoli AQ 18 4326 15337
Crognaleto TE 19 1297 16634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
79 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
80 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
100 Km NE of Roma (2864731 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
Reviewed
Rev100 		ML 2.0 2018-02-18
05:31:51		 42.5928 13.2523 11 2018-02-18
05:50:08		 Sala Sismica INGV-Roma 53992491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-18 05:31:51 ± 0.06
Latitude 42.5928 ± 0.0027
Longitude 13.2523 ± 0.0037
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 53992491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 339
Semi-minor axis of confidence ellipse (meter) 58
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 30
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50002
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 19
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 54
Type of magnitude ML
Reference to an origin 53992491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-18 05:50:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2018-02-18T05:32:27.95 3.0 undecidable manual S -1.46 0
IV.SAMA.HHZ. 2018-02-18T05:32:08.47 3.0 positive manual P -0.47 0
IV.CING.HHZ. 2018-02-18T05:32:06.77 3.0 undecidable manual P -0.01 0
IV.ATCC.EHZ. 2018-02-18T05:32:05.80 3.0 undecidable manual P -0.12 0
IV.TRTR.HHZ. 2018-02-18T05:32:03.16 3.0 undecidable manual P 0.93 0
IV.PF6.EHZ. 2018-02-18T05:32:02.31 3.0 negative manual P -0.11 0
IV.CSP1.EHZ. 2018-02-18T05:32:01.43 0.6 negative manual P 356 55.5 90 0.13 46
IV.CESI.HHZ. 2018-02-18T05:32:01.18 0.6 positive manual P 328 53.8017 90 0.15 46
IV.TERO.HHZ. 2018-02-18T05:32:01.13 0.1 undecidable manual S 83 28.8489 91 -0.36 91
IV.GUMA.HHZ. 2018-02-18T05:32:01.42 0.3 positive manual P 7 52.503 90 0.58 63
IV.CESX.HHZ. 2018-02-18T05:32:01.06 3.0 positive manual P -0.02 0
IV.NRCA.HHZ. 2018-02-18T05:32:01.24 0.1 undecidable manual S 337 28.9488 91 -0.28 92
IV.OFFI.HHZ. 2018-02-18T05:32:01.72 3.0 positive manual P 0.66 0
IV.VCEL.EHZ. 2018-02-18T05:32:01.30 3.0 negative manual P 0.23 0
IV.GIGS.HHZ. 2018-02-18T05:32:01.57 0.1 undecidable manual S 121 30.4473 90 -0.34 92
IV.MF5.EHZ. 2018-02-18T05:32:00.50 1.0 positive manual P 21 46.9197 90 0.52 21
IV.MTRA.HNZ. 2018-02-18T05:31:59.21 0.1 undecidable manual S 33 21.6672 91 -0.35 92
IV.FAGN.HHZ. 2018-02-18T05:31:59.87 3.0 positive manual P 0.19 0
IV.T1221.EHZ. 2018-02-18T05:31:59.55 0.6 positive manual P 312 44.4222 90 -0.04 47
IV.ARRO.EHZ. 2018-02-18T05:31:58.76 3.0 positive manual P 0.08 0
IV.MMO1.EHZ. 2018-02-18T05:31:58.15 0.1 positive manual P 10 34.5432 90 0.08 96
IV.LNSS.HHZ. 2018-02-18T05:31:58.17 0.1 undecidable manual S 274 17.3715 92 -0.25 94
IV.FIAM.HHZ. 2018-02-18T05:31:58.47 3.0 positive manual P 0.21 0
IV.T1247.HHZ. 2018-02-18T05:31:58.44 0.1 undecidable manual S 167 17.1717 92 0.06 99
IV.MC2.EHZ. 2018-02-18T05:31:58.44 0.6 negative manual P 352 35.742 90 0.19 47
IV.T1214.EHZ. 2018-02-18T05:31:58.70 0.1 undecidable manual S 349 18.87 91 -0.11 97
IV.NRCA.HHZ. 2018-02-18T05:31:57.15 0.1 negative manual P 337 28.9488 91 -0.06 96
IV.CAMP.HHZ. 2018-02-18T05:31:57.64 0.1 undecidable manual S 116 14.2746 97 0.05 100
IV.GIGS.HHZ. 2018-02-18T05:31:57.29 0.6 positive manual P 121 30.4473 90 -0.15 48
OB.GAVE.EHZ. 2018-02-18T05:31:57.48 0.1 positive manual P 291 31.2465 90 -0.08 95
IV.TERO.HHZ. 2018-02-18T05:31:57.10 0.1 undecidable manual P 83 28.8489 91 -0.1 96
IV.MTRA.HNZ. 2018-02-18T05:31:56.04 0.1 undecidable manual P 33 21.6672 91 -0.04 98
IV.SMA1.EHZ. 2018-02-18T05:31:56.36 0.1 undecidable manual S 58 7.9809 132 0.28 98
IV.RM33.HNZ. 2018-02-18T05:31:56.33 0.1 undecidable manual S 198 9.7791 122 -0.15 97
IV.T1247.HHZ. 2018-02-18T05:31:55.47 0.1 undecidable manual P 167 17.1717 92 0.08 99
IV.T1214.EHZ. 2018-02-18T05:31:55.69 0.1 undecidable manual P 349 18.87 91 0.04 100
IV.T1299.HNZ. 2018-02-18T05:31:55.32 0.1 undecidable manual S 28 5.1948 147 -0.28 94
IV.CAMP.HHZ. 2018-02-18T05:31:55.10 0.1 undecidable manual P 116 14.2746 97 0.15 98
IV.LNSS.HHZ. 2018-02-18T05:31:55.42 0.1 undecidable manual P 274 17.3715 92 0 99
IV.SMA1.EHZ. 2018-02-18T05:31:54.44 0.1 undecidable manual P 58 7.9809 132 0.37 96
IV.RM33.HNZ. 2018-02-18T05:31:54.44 0.1 undecidable manual P 198 9.7791 122 0.14 100
IV.T1299.HNZ. 2018-02-18T05:31:54.05 0.1 undecidable manual P 28 5.1948 147 0.25 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1299.EHE. ML:2.3 0.0030099999999999997 0.22 AML other m 2018-02-18T05:31:55.83
IV.T1299.HNE. ML:2.3 0.003025 0.22 AML other m 2018-02-18T05:31:55.83
IV.T1299.EHN. ML:2.2 0.002145 1.34 AML other m 2018-02-18T05:31:56.84
IV.T1299.HNN. ML:2.2 0.00212 1.34 AML other m 2018-02-18T05:31:56.84
IV.RM33.HNN. ML:2.2 0.001975 0.46 AML other m 2018-02-18T05:31:56.65
IV.RM33.EHN. ML:2.2 0.0019649999999999997 0.44 AML other m 2018-02-18T05:31:56.65
IV.RM33.EHE. ML:2.2 0.0019 0.64 AML other m 2018-02-18T05:31:56.51
IV.RM33.HNE. ML:2.2 0.00199 0.64 AML other m 2018-02-18T05:31:56.51
IV.SMA1.EHN. ML:2.2 0.002345 0.34 AML other m 2018-02-18T05:31:56.65
IV.SMA1.EHE. ML:2.8 0.007855000000000001 0.48 AML other m 2018-02-18T05:31:56.73
IV.CAMP.HHN. ML:1.4 0.00023199999999999997 1.22 AML other m 2018-02-18T05:31:58.67
IV.CAMP.HHE. ML:1.4 0.00025 0.96 AML other m 2018-02-18T05:31:58.22
IV.LNSS.HHN. ML:2.4 0.0018050000000000002 0.14 AML other m 2018-02-18T05:31:58.49
IV.LNSS.HHE. ML:2.2 0.001385 0.3 AML other m 2018-02-18T05:31:58.46
IV.T1214.HNN. ML:1.6 0.00031599999999999993 1.3 AML other m 2018-02-18T05:31:59.33
IV.T1247.HHN. ML:6.8 258 1.18 AML other m 2018-02-18T05:31:59.96
IV.MTRA.HNN. ML:2.3 0.001495 0.24 AML other m 2018-02-18T05:31:59.78
IV.MTRA.EHN. ML:2.3 0.00148 0.24 AML other m 2018-02-18T05:31:59.66
IV.MTRA.HNE. ML:2.2 0.0009739999999999999 0.16 AML other m 2018-02-18T05:31:59.85
IV.MTRA.EHE. ML:2.2 0.0009785 1.52 AML other m 2018-02-18T05:32:00.86
IV.T1214.EHN. ML:1.6 0.00029949999999999996 1.38 AML other m 2018-02-18T05:32:00.29
IV.T1214.EHE. ML:1.6 0.0002725 0.78 AML other m 2018-02-18T05:32:00.18
IV.NRCA.HNN. ML:2.0 0.0005529999999999999 0.68 AML other m 2018-02-18T05:32:01.40
IV.NRCA.HHN. ML:2.1 0.000643 0.1 AML other m 2018-02-18T05:32:01.40
IV.GIGS.HHN. ML:1.1 0.000058049999999999995 0.16 AML other m 2018-02-18T05:32:01.78
IV.GIGS.HHE. ML:1.4 0.0001137 0.12 AML other m 2018-02-18T05:32:01.79
IV.T1247.HHE. ML:6.8 226 0.16 AML other m 2018-02-18T05:32:01.84
IV.NRCA.HHE. ML:2.2 0.0008954999999999999 0.52 AML other m 2018-02-18T05:32:01.65
IV.NRCA.HNE. ML:2.2 0.00086 0.52 AML other m 2018-02-18T05:32:01.65
OB.GAVE.EHN. ML:2.1 0.000605 0.26 AML other m 2018-02-18T05:32:02.24
IV.TERO.HHE. ML:1.7 0.000243 0.26 AML other m 2018-02-18T05:32:02.44
OB.GAVE.EHE. ML:2.0 0.0005245 0.18 AML other m 2018-02-18T05:32:02.88
IV.TERO.HHN. ML:1.8 0.00028000000000000003 0.46 AML other m 2018-02-18T05:32:03.05
IV.T1214.HNE. ML:1.6 0.0002875 0.44 AML other m 2018-02-18T05:32:03.31
IV.FIAM.HHE. ML:1.5 0.0001245 0.66 AML other m 2018-02-18T05:32:04.16
IV.ARRO.EHE. ML:1.6 0.0001395 1.12 AML other m 2018-02-18T05:32:04.84
IV.ARRO.EHN. ML:1.6 0.0001325 0.84 AML other m 2018-02-18T05:32:05.56
IV.FIAM.HHN. ML:1.5 0.00010375000000000001 0.36 AML other m 2018-02-18T05:32:06.98
IV.MF5.EHN. ML:2.0 0.0002755 1.64 AML other m 2018-02-18T05:32:08.90
IV.FAGN.HHE. ML:1.8 0.000178 0.42 AML other m 2018-02-18T05:32:08.47
IV.MF5.EHE. ML:1.8 0.00019600000000000002 1.4 AML other m 2018-02-18T05:32:08.05
IV.CESI.HHN. ML:1.5 0.00007999999999999999 0.22 AML other m 2018-02-18T05:32:08.88
IV.GUMA.HHE. ML:2.3 0.00044799999999999994 0.34 AML other m 2018-02-18T05:32:09.36
IV.CESX.HHE. ML:1.3 0.0000487 0.56 AML other m 2018-02-18T05:32:09.95
IV.GUMA.HHN. ML:2.1 0.00028149999999999996 1.6 AML other m 2018-02-18T05:32:10.83
IV.VCEL.EHN. ML:2.0 0.0002125 0.16 AML other m 2018-02-18T05:32:10.25
IV.CESX.HHN. ML:1.6 0.00008340000000000001 0.42 AML other m 2018-02-18T05:32:10.37
IV.OFFI.HHN. ML:2.0 0.00026000000000000003 0.42 AML other m 2018-02-18T05:32:10.71
IV.OFFI.HHE. ML:1.9 0.0001835 0.78 AML other m 2018-02-18T05:32:11.24
IV.VCEL.EHE. ML:1.9 0.000183 1.08 AML other m 2018-02-18T05:32:11.08
IV.CESI.HHE. ML:1.3 0.00005075 0.3 AML other m 2018-02-18T05:32:11.77
IV.FAGN.HHN. ML:1.6 0.0001315 0.4 AML other m 2018-02-18T05:32:12.29
IV.GUMA.HNE. ML:2.5 0.0007105 0.44 AML other m 2018-02-18T05:32:16.51
IV.GUMA.HNN. ML:3.1 0.002989 0.4 AML other m 2018-02-18T05:32:19.64
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