Earthquake with magnitude of ML 2.6 on date 18-02-2018 and time 07:42:09 (Italy) in region 5 km SW Accumoli (RI)

A magnitude ML 2.6 earthquake occured in region: 5 km SW Accumoli (RI), on

  • 18-02-2018 06:42:09 (UTC)
  • 18-02-2018 07:42:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6510, 13.2280 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Accumoli RI 5 667 667
Amatrice RI 6 2657 3324
Cittareale RI 7 482 3806
Montereale AQ 14 2581 6387
Arquata del Tronto AP 15 1178 7565
Campotosto AQ 16 542 8107
Capitignano AQ 16 665 8772
Borbona RI 17 617 9389
Posta RI 18 694 10083
Cascia PG 19 3217 13300
Norcia PG 19 4957 18257
Acquasanta Terme AP 20 2916 21173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km W of Pescara (121014 inhabitants)
84 Km W of Chieti (51815 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
85 Km SE of Perugia (166134 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.6 2018-02-18
06:42:09
42.6513 13.2285 10 2019-04-24
14:49:46
Bollettino Sismico Italiano INGV 65119831
Reviewed
Rev100
ML 2.6 2018-02-18
06:42:09
42.6483 13.2343 11 2018-02-18
06:51:00
Sala Sismica INGV-Roma 53994421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-18 06:42:09 ± 0.07
Latitude 42.6513 ± 0.0036
Longitude 13.2285 ± 0.0061
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 65119831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 518
Semi-minor axis of confidence ellipse (meter) 338
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 1.00005
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.4
Num. used stations 70
Type of magnitude ML
Reference to an origin 65119831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-01 13:44:57

ML:2.6

Field Value
Value 2.6
Uncertainty 0.4
Num. used stations 72
Type of magnitude ML
Reference to an origin 53994421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-18 06:50:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2018-02-18T06:42:28.40 0.6 undecidable manual S 119 57.5979 50 0.92 35
IV.POFI.HNE. 2018-02-18T06:42:28.30 0.6 undecidable manual P 159 111 50 0.22 40
IV.MOMA.HHZ. 2018-02-18T06:42:27.60 0.6 undecidable manual S 288 56.2992 50 0.48 42
IV.OFFI.HHZ. 2018-02-18T06:42:27.00 0.3 undecidable manual S 50 48.7179 50 1.88 31
IV.FAGN.HHZ. 2018-02-18T06:42:26.10 0.6 undecidable manual S 146 51.7038 50 0.19 46
IV.GUMA.HHZ. 2018-02-18T06:42:25.00 0.6 undecidable manual S 11 46.4202 50 0.49 43
IV.SSFR.HHN. 2018-02-18T06:42:25.85 0.3 undecidable manual P 338 94.3389 50 0.33 61
IV.CSP1.EHZ. 2018-02-18T06:42:25.20 0.6 undecidable manual S 358 48.9177 50 0.04 47
IV.CESI.HHZ. 2018-02-18T06:42:25.00 0.6 undecidable manual S 326 47.2194 50 0.28 45
IV.MF5.EHZ. 2018-02-18T06:42:23.90 0.6 undecidable manual S 27 41.8248 50 0.64 41
IV.CERT.HHE. 2018-02-18T06:42:23.13 0.1 undecidable manual P 195 80.4639 50 -0.26 85
IV.FIAM.HHZ. 2018-02-18T06:42:23.80 0.6 undecidable manual S 192 43.5231 50 0.09 47
IV.EL6.EHE. 2018-02-18T06:42:22.66 0.3 undecidable manual P 352 75.8685 50 -0.02 68
IV.MTCE.HHZ. 2018-02-18T06:42:22.59 0.1 undecidable manual P 210 80.364 50 -0.77 72
IV.SNTG.HHZ. 2018-02-18T06:42:21.84 0.3 undecidable manual P 341 70.9734 50 -0.08 67
IV.GIGS.HHZ. 2018-02-18T06:42:21.00 0.3 undecidable manual S 128 35.742 50 -0.64 62
IV.TRTR.HHZ. 2018-02-18T06:42:21.00 0.1 undecidable manual P 72 58.497 50 1 68
IV.VCEL.EHZ. 2018-02-18T06:42:20.04 0.1 undecidable manual P 119 57.5979 50 0.18 90
IV.PF6.EHZ. 2018-02-18T06:42:19.20 0.1 undecidable manual P 357 54.0015 50 -0.11 92
IV.TERO.HHZ. 2018-02-18T06:42:19.50 0.6 undecidable manual S 96 30.8469 50 -0.83 39
IV.MOMA.HHZ. 2018-02-18T06:42:19.64 1.0 undecidable manual P 288 56.2992 50 -0.01 23
IV.OFFI.HHZ. 2018-02-18T06:42:19.10 0.1 positive manual P 50 48.7179 50 0.6 82
IV.CSP1.EHZ. 2018-02-18T06:42:18.34 0.1 undecidable manual P 358 48.9177 50 -0.18 92
IV.CESX.HHZ. 2018-02-18T06:42:18.95 0.1 undecidable manual P 265 52.6029 50 -0.14 92
IV.CESI.HHZ. 2018-02-18T06:42:18.24 0.6 undecidable manual P 326 47.2194 50 -0.03 47
IV.FAGN.HHZ. 2018-02-18T06:42:18.68 0.1 positive manual P 146 51.7038 50 -0.28 89
IV.GUMA.HHZ. 2018-02-18T06:42:18.26 0.1 undecidable manual P 11 46.4202 50 0.12 93
IV.MMO1.EHZ. 2018-02-18T06:42:18.90 0.3 undecidable manual S 16 28.6491 50 -0.86 58
IV.FIAM.HHZ. 2018-02-18T06:42:17.66 0.1 positive manual P 192 43.5231 50 -0.03 96
IV.MF5.EHZ. 2018-02-18T06:42:17.67 0.1 undecidable manual P 27 41.8248 50 0.24 92
IV.NRCA.HHZ. 2018-02-18T06:42:17.40 0.3 undecidable manual S 335 22.2555 115 -0.54 66
IV.CAMP.HHZ. 2018-02-18T06:42:16.80 0.3 undecidable manual S 131 19.5693 118 -0.29 71
IV.GIGS.HHZ. 2018-02-18T06:42:16.09 0.1 undecidable manual P 128 35.742 50 -0.4 90
IV.MTRA.HNZ. 2018-02-18T06:42:16.00 0.3 undecidable manual S 49 17.9709 119 -0.63 65
IV.RM33.HNZ. 2018-02-18T06:42:16.20 0.3 undecidable manual S 184 15.873 123 0.22 72
IV.ARRO.EHZ. 2018-02-18T06:42:16.90 0.1 undecidable manual P 258 38.628 50 -0.04 96
IV.LNSS.HHZ. 2018-02-18T06:42:16.40 0.6 undecidable manual S 251 16.2726 122 0.29 47
IV.TERO.HHZ. 2018-02-18T06:42:15.36 0.1 undecidable manual P 96 30.8469 50 -0.37 91
IV.MC2.EHZ. 2018-02-18T06:42:15.23 0.1 undecidable manual P 354 29.0487 50 -0.23 94
IV.MMO1.EHZ. 2018-02-18T06:42:15.12 0.1 positive manual P 16 28.6491 50 -0.28 93
IV.NRCA.HHZ. 2018-02-18T06:42:14.16 0.1 positive manual P 335 22.2555 115 -0.19 96
IV.SMA1.EHZ. 2018-02-18T06:42:14.20 0.3 undecidable manual S 105 8.9799 138 0.03 76
IV.T1299.HNZ. 2018-02-18T06:42:13.40 0.3 undecidable manual S 113 4.7952 155 0.05 76
IV.LNSS.HHZ. 2018-02-18T06:42:13.56 0.1 positive manual P 251 16.2726 122 0.27 95
IV.CAMP.HHZ. 2018-02-18T06:42:13.85 0.1 positive manual P 131 19.5693 118 -0.01 100
IV.MTRA.HNZ. 2018-02-18T06:42:13.42 0.1 positive manual P 49 17.9709 119 -0.17 97
IV.RM33.HNZ. 2018-02-18T06:42:13.52 0.1 positive manual P 184 15.873 123 0.3 95
IV.SMA1.EHZ. 2018-02-18T06:42:12.46 0.1 undecidable manual P 105 8.9799 138 0.29 96
IV.T1299.HNZ. 2018-02-18T06:42:12.03 0.1 undecidable manual P 113 4.7952 155 0.33 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1299.HNN. ML:0.0 0.014538625 0.32 AML other m 2018-02-18T06:42:13.53
IV.T1299.EHN. ML:0.0 0.014727905 0.32 AML other m 2018-02-18T06:42:13.53
IV.T1299.HNE. ML:0.0 0.009710000000000002 0.32 AML other m 2018-02-18T06:42:13.56
IV.T1299.EHE. ML:0.0 0.0100477535 0.32 AML other m 2018-02-18T06:42:13.56
IV.SMA1.EHE. ML:0.0 0.06627160500000001 0.2592 AML other m 2018-02-18T06:42:14.97
IV.SMA1.EHN. ML:0.0 0.044366304999999995 0.3392 AML other m 2018-02-18T06:42:14.89
IV.MTRA.HNN. ML:0.0 0.00919284 0.4224 AML other m 2018-02-18T06:42:16.41
IV.MTRA.EHN. ML:0.0 0.008830876 0.4224 AML other m 2018-02-18T06:42:16.41
IV.RM33.HNN. ML:0.0 0.007923774 0.1504 AML other m 2018-02-18T06:42:16.66
IV.RM33.EHN. ML:0.0 0.00780461 0.1376 AML other m 2018-02-18T06:42:16.66
IV.LNSS.HHN. ML:0.0 0.00327283 0.3392 AML other m 2018-02-18T06:42:16.78
IV.RM33.EHE. ML:0.0 0.008236857 0.1792 AML other m 2018-02-18T06:42:17.03
IV.RM33.HNE. ML:0.0 0.0083782625 0.1696 AML other m 2018-02-18T06:42:17.03
IV.CAMP.HHE. ML:0.0 0.0013910182 0.2208 AML other m 2018-02-18T06:42:17.07
IV.MTRA.HNE. ML:0.0 0.00888818 0.3616 AML other m 2018-02-18T06:42:17.09
IV.MTRA.EHE. ML:0.0 0.008703489999999998 0.3616 AML other m 2018-02-18T06:42:17.09
IV.LNSS.HHE. ML:0.0 0.0041707785 0.2784 AML other m 2018-02-18T06:42:17.76
IV.NRCA.HHE. ML:0.0 0.0033529109999999997 0.1024 AML other m 2018-02-18T06:42:17.92
IV.NRCA.HNE. ML:0.0 0.0031038985 0.1088 AML other m 2018-02-18T06:42:17.93
IV.CAMP.HHN. ML:0.0 0.0013585259999999999 0.4192 AML other m 2018-02-18T06:42:17.95
IV.NRCA.HHN. ML:0.0 0.0016688065 0.0992 AML other m 2018-02-18T06:42:18.28
IV.NRCA.HNN. ML:0.0 0.0015797485 0.0896 AML other m 2018-02-18T06:42:18.29
IV.TERO.HHN. ML:0.0 0.0021052049999999998 0.2976 AML other m 2018-02-18T06:42:22.79
IV.TERO.HNN. ML:0.0 0.0011367845 0.3584 AML other m 2018-02-18T06:42:22.76
IV.GIGS.HHE. ML:0.0 0.00044486335 0.32 AML other m 2018-02-18T06:42:21.30
IV.GIGS.HHN. ML:0.0 0.00032169955 0.2208 AML other m 2018-02-18T06:42:22.10
IV.TERO.HNE. ML:0.0 0.001311572 0.3488 AML other m 2018-02-18T06:42:22.40
IV.TERO.HHE. ML:0.0 0.0021587305 0.3392 AML other m 2018-02-18T06:42:22.41
IV.FIAM.HHE. ML:0.0 0.0014506383 0.2016 AML other m 2018-02-18T06:42:24.48
IV.FIAM.HHN. ML:0.0 0.00097403685 0.1792 AML other m 2018-02-18T06:42:24.61
IV.MF5.EHE. ML:0.0 0.001172606 0.4608 AML other m 2018-02-18T06:42:24.76
IV.ARRO.EHE. ML:0.0 0.00066342225 0.2592 AML other m 2018-02-18T06:42:24.84
IV.MF5.EHN. ML:0.0 0.0008296623000000001 0.3808 AML other m 2018-02-18T06:42:25.18
IV.GUMA.HHE. ML:0.0 0.002002945 0.4608 AML other m 2018-02-18T06:42:25.54
IV.GUMA.HNN. ML:0.0 0.0027242155 0.4992 AML other m 2018-02-18T06:42:26.04
IV.GUMA.HHN. ML:0.0 0.0024564555 0.4576 AML other m 2018-02-18T06:42:26.04
IV.CSP1.EHN. ML:0.0 0.000081250465 0.3776 AML other m 2018-02-18T06:42:26.12
IV.SNTG.HNN. ML:2.2 0.0002454462 1.1296 AML other m 2018-02-18T06:42:26.42
IV.GUMA.HNE. ML:0.0 0.0015151425 0.4928 AML other m 2018-02-18T06:42:27.00
IV.ARRO.EHN. ML:0.0 0.00049523555 0.32 AML other m 2018-02-18T06:42:27.43
IV.OFFI.HHN. ML:0.0 0.0015929085 0.4192 AML other m 2018-02-18T06:42:28.25
IV.CESI.HHN. ML:0.0 0.00044923795 0.3616 AML other m 2018-02-18T06:42:28.87
IV.FAGN.HHE. ML:0.0 0.0012859920000000001 0.24 AML other m 2018-02-18T06:42:29.24
IV.CESX.HHE. ML:0.0 0.00045902635000000003 0.3392 AML other m 2018-02-18T06:42:29.44
IV.CESI.HHE. ML:0.0 0.00027502369999999997 0.4192 AML other m 2018-02-18T06:42:29.53
IV.OFFI.HHE. ML:0.0 0.0022671839999999998 0.4608 AML other m 2018-02-18T06:42:29.57
IV.MOMA.HHE. ML:0.0 0.0004148304 0.2208 AML other m 2018-02-18T06:42:29.69
IV.FAGN.HHN. ML:0.0 0.0010370629999999997 0.2592 AML other m 2018-02-18T06:42:30.31
IV.CESX.HHN. ML:0.0 0.0006118308 0.2784 AML other m 2018-02-18T06:42:30.36
IV.VCEL.EHN. ML:0.0 0.001528127 0.3968 AML other m 2018-02-18T06:42:30.36
IV.VCEL.EHE. ML:0.0 0.001356911 0.2816 AML other m 2018-02-18T06:42:30.38
IV.MOMA.HNN. ML:0.0 0.00049888475 0.2688 AML other m 2018-02-18T06:42:30.56
IV.MOMA.HHN. ML:0.0 0.0005015996 0.2592 AML other m 2018-02-18T06:42:30.56
IV.PF6.EHE. ML:1.9 0.00016949999999999997 1.04 AML other m 2018-02-18T06:42:30.93
IV.PF6.EHN. ML:1.6 0.00010085 1.48 AML other m 2018-02-18T06:42:31.08
IV.CSP1.EHE. ML:1.9 0.00020590999999999999 0.48 AML other m 2018-02-18T06:42:34.75
IV.MOMA.HNE. ML:2.3 0.000448 1.62 AML other m 2018-02-18T06:42:36.98
IV.SNTG.HHE. ML:0.0 0.000073971375 0.4416 AML other m 2018-02-18T06:42:41.29
IV.TRTR.HHE. ML:0.0 0.0010065773 0.56 AML other m 2018-02-18T06:42:40.74
IV.SNTG.HHN. ML:0.0 0.000094180205 0.5184 AML other m 2018-02-18T06:42:40.95
IV.TRTR.HHN. ML:0.0 0.0011461192 0.3808 AML other m 2018-02-18T06:42:41.56
IV.SNTG.HNE. ML:2.1 0.0002130308 0.7808 AML other m 2018-02-18T06:42:46.95
IV.T1247.HHN. ML:6.9 1471.376 0.128 AML other m 2018-02-18T06:42:19.16
IV.T1247.HHE. ML:6.9 2121.247 0.24 AML other m 2018-02-18T06:42:21.46
OB.GAVE.HNN. ML:0.0 0.00064064855 0.3296 AML other m 2018-02-18T06:42:19.72
OB.GAVE.EHN. ML:0.0 0.0023695649999999997 0.32 AML other m 2018-02-18T06:42:19.73
OB.GAVE.HNE. ML:0.0 0.001565 1.26 AML other m 2018-02-18T06:42:19.64
OB.GAVE.EHE. ML:0.0 0.0015181955000000001 0.2592 AML other m 2018-02-18T06:42:20.01
IV.T1221.EHN. ML:2.0 0.00036817995000000005 0.448 AML other m 2018-02-18T06:42:24.65
IV.T1221.EHE. ML:2.1 0.00048743764999999997 0.4 AML other m 2018-02-18T06:42:23.75
IV.T1221.HNN. ML:2.0 0.00037992735 0.448 AML other m 2018-02-18T06:42:24.65
IV.T1221.HNE. ML:2.2 0.0005073620000000001 0.4 AML other m 2018-02-18T06:42:23.53
IV.T0110.HHN. ML:2.7 0.00094517645 0.4192 AML other m 2018-02-18T06:42:34.43
IV.T0110.HHE. ML:2.6 0.00080860745 0.4608 AML other m 2018-02-18T06:42:39.42
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
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