Earthquake with magnitude of ML 1.6 on date 15-05-2018 and time 21:31:53 (Italy) in region 4 km N Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 4 km N Accumoli (RI), on

  • 15-05-2018 19:31:53 (UTC)
  • 15-05-2018 21:31:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.73, 13.24 at 11 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 4 667 667
Arquata del Tronto AP 7 1178 1845
Amatrice RI 12 2657 4502
Norcia PG 14 4957 9459
Cittareale RI 14 482 9941
Acquasanta Terme AP 15 2916 12857
Montegallo AP 15 523 13380
Cascia PG 18 3217 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
52 Km E of Terni (111501 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
99 Km E of Viterbo (67173 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
Rev 1000 ML 1.6 2018-05-15
19:31:53
42.73 13.24 11 2019-04-24
14:50:45
Bollettino Sismico Italiano INGV 57942631
Rev 100 ML 1.7 2018-05-15
19:31:53
42.72 13.24 10 2018-05-15
19:39:12
Sala Sismica INGV-Roma 56902441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-15 19:31:53 ± 0.04
Latitude 42.73 ± 0.00
Longitude 13.24 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57942631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 323
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 47
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) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.63762
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 56902441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-15 19:39:12

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 43
Type of magnitude ML
Reference to an origin 57942631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-20 15:36:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2018-05-15T19:32:10.35 0.6 undecidable manual S 191 0.4694 50 0.39 43
IV.MML1.HNE. 2018-05-15T19:32:09.04 0.3 undecidable manual S 333 0.4308 50 0.22 68
IV.GIGS.HHZ. 2018-05-15T19:32:07.11 0.1 undecidable manual S 138 0.3696 50 0.08 94
IV.CESI.HHE. 2018-05-15T19:32:07.01 0.6 undecidable manual S 319 0.3678 50 0.04 47
IV.ARRO.EHZ. 2018-05-15T19:32:07.64 0.6 undecidable manual S 247 0.3777 50 0.39 44
IV.T1219.EHN. 2018-05-15T19:32:06.94 0.1 undecidable manual S 333 0.3687 50 -0.04 95
IV.CSP1.EHE. 2018-05-15T19:32:06.89 0.6 undecidable manual S 356 0.3633 50 0.06 47
IV.GUMA.HHZ. 2018-05-15T19:32:06.91 0.6 undecidable manual S 12 0.3408 50 0.73 39
IV.FDMO.HHN. 2018-05-15T19:32:05.58 0.6 undecidable manual S 340 0.3265 50 -0.16 47
IV.T1221.EHZ. 2018-05-15T19:32:05.37 0.6 undecidable manual S 295 0.3148 50 -0.03 48
IV.T0110.HHZ. 2018-05-15T19:32:05.97 0.6 undecidable manual P 141 0.6376 50 0.04 45
IV.FAGN.HHZ. 2018-05-15T19:32:04.13 0.6 undecidable manual P 151 0.5288 50 0.07 46
IV.TERO.HHZ. 2018-05-15T19:32:04.50 0.1 undecidable manual S 111 0.2896 50 -0.14 94
IV.FIAM.HHZ. 2018-05-15T19:32:03.02 0.1 undecidable manual P 191 0.4694 50 -0.02 93
IV.FEMA.HNE. 2018-05-15T19:32:03.98 0.6 undecidable manual S 330 0.2707 50 -0.1 48
IV.RM33.EHZ. 2018-05-15T19:32:02.50 0.3 undecidable manual S 184 0.2203 50 -0.09 73
IV.MML1.HNE. 2018-05-15T19:32:02.29 0.3 undecidable manual P 333 0.4308 50 -0.1 70
IV.CAMP.HHE. 2018-05-15T19:32:02.60 0.1 undecidable manual S 147 0.2302 50 -0.29 93
IV.OFFI.HHZ. 2018-05-15T19:32:02.43 0.1 undecidable manual P 58 0.3876 50 0.77 77
IV.ARRO.EHZ. 2018-05-15T19:32:01.49 0.3 undecidable manual P 247 0.3777 50 0.01 71
IV.CESI.HHE. 2018-05-15T19:32:01.10 0.1 undecidable manual P 319 0.3678 50 -0.21 92
IV.MMO1.EHZ. 2018-05-15T19:32:01.20 0.6 undecidable manual S 21 0.1826 50 -0.27 47
IV.CSP1.EHE. 2018-05-15T19:32:01.31 0.6 undecidable manual P 356 0.3633 50 0.08 47
IV.LNSS.HHZ. 2018-05-15T19:32:01.80 0.3 undecidable manual S 229 0.1916 50 0.05 74
IV.T1219.EHN. 2018-05-15T19:32:01.04 0.3 undecidable manual P 333 0.3687 50 -0.28 68
IV.GUMA.HHZ. 2018-05-15T19:32:01.10 0.1 positive manual P 12 0.3408 50 0.25 92
IV.GIGS.HHZ. 2018-05-15T19:32:01.00 0.3 undecidable manual P 138 0.3696 50 -0.35 67
IV.MC2.EHZ. 2018-05-15T19:32:01.70 0.3 undecidable manual S 349 0.1862 50 0.14 72
IV.MF5.EHZ. 2018-05-15T19:32:00.53 0.1 undecidable manual P 32 0.3058 50 0.28 91
IV.FDMO.HHN. 2018-05-15T19:32:00.40 0.3 undecidable manual P 340 0.3265 50 -0.2 69
IV.T1221.EHZ. 2018-05-15T19:32:00.29 0.1 positive manual P 295 0.3148 50 -0.12 94
IV.T1247.HHZ. 2018-05-15T19:32:00.06 0.3 undecidable manual P 171 0.2905 50 0.07 72
IV.T1299.HNN. 2018-05-15T19:31:59.30 0.1 undecidable manual S 161 0.0998 135 0.27 95
IV.SMA1.EHZ. 2018-05-15T19:31:59.40 0.6 undecidable manual S 144 0.1223 129 -0.25 48
IV.TERO.HHZ. 2018-05-15T19:31:59.71 0.1 undecidable manual P 111 0.2896 50 -0.26 92
IV.NRCA.HNZ. 2018-05-15T19:31:59.80 0.6 undecidable manual S 319 0.1385 126 -0.35 47
IV.MTRA.EHZ. 2018-05-15T19:31:59.30 0.6 undecidable manual S 77 0.1205 130 -0.3 47
IV.FEMA.HNE. 2018-05-15T19:31:59.55 0.1 undecidable manual P 330 0.2707 50 -0.1 96
IV.MC2.EHZ. 2018-05-15T19:31:58.16 0.1 positive manual P 349 0.1862 50 -0.04 98
IV.RM33.EHZ. 2018-05-15T19:31:58.78 0.3 positive manual P 184 0.2203 50 -0.01 74
IV.CAMP.HHE. 2018-05-15T19:31:58.79 0.1 undecidable manual P 147 0.2302 50 -0.18 95
IV.MMO1.EHZ. 2018-05-15T19:31:58.01 0.1 negative manual P 21 0.1826 50 -0.13 97
IV.LNSS.HHZ. 2018-05-15T19:31:58.31 0.1 positive manual P 229 0.1916 50 0.01 99
IV.NRCA.HNZ. 2018-05-15T19:31:57.31 0.1 positive manual P 319 0.1385 126 -0.06 99
IV.MTRA.EHZ. 2018-05-15T19:31:57.04 0.1 negative manual P 77 0.1205 130 -0.02 100
IV.T1299.HNN. 2018-05-15T19:31:57.01 0.1 undecidable manual P 161 0.0998 135 0.28 95
IV.SMA1.EHZ. 2018-05-15T19:31:57.19 0.1 positive manual P 144 0.1223 129 0.1 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.7 0.00057250965 0.1408 AML other m 2018-05-15T19:31:59.49
IV.MTRA.HNE. ML:0 0.000648 0.98 AML other m 2018-05-15T19:32:00.50
IV.SMA1.EHE. ML:0 0.00066522775 0.2176 AML other m 2018-05-15T19:31:59.89
IV.MTRA.HNN. ML:0 0.0003724712 0.0896 AML other m 2018-05-15T19:31:59.96
IV.MTRA.EHN. ML:1.5 0.00035226505 0.1024 AML other m 2018-05-15T19:31:59.96
IV.SMA1.EHN. ML:0 0.000597 0.1 AML other m 2018-05-15T19:31:59.90
IV.NRCA.HNE. ML:0 0.002100103 0.1664 AML other m 2018-05-15T19:32:00.04
IV.NRCA.HHE. ML:0 0.002298366 0.1664 AML other m 2018-05-15T19:32:00.04
IV.NRCA.HHN. ML:0 0.0012923545 0.128 AML other m 2018-05-15T19:32:00.67
IV.NRCA.HNN. ML:0 0.00121 0.12 AML other m 2018-05-15T19:32:00.67
IV.LNSS.HHN. ML:0 0.00076 0.64 AML other m 2018-05-15T19:32:02.14
IV.LNSS.HHE. ML:0 0.0007145 0.46 AML other m 2018-05-15T19:32:02.29
IV.RM33.HNN. ML:1.7 0.00027384905 0.2304 AML other m 2018-05-15T19:32:02.96
IV.RM33.EHN. ML:0 0.000265 0.22 AML other m 2018-05-15T19:32:02.85
IV.RM33.EHE. ML:0 0.00018848385 0.128 AML other m 2018-05-15T19:32:03.66
IV.RM33.HNE. ML:1.6 0.00021216285 0.192 AML other m 2018-05-15T19:32:03.66
OB.GAVE.HNE. ML:0 0.00038693335 0.128 AML other m 2018-05-15T19:32:04.22
OB.GAVE.EHE. ML:0 0.0003946539 0.128 AML other m 2018-05-15T19:32:04.29
IV.TERO.HHE. ML:0 0.0001458428 0.0768 AML other m 2018-05-15T19:32:06.75
IV.TERO.HNE. ML:1.3 9.316419E-5 0.1536 AML other m 2018-05-15T19:32:04.44
IV.TERO.HHN. ML:0 0.00021185655 0.1408 AML other m 2018-05-15T19:32:04.76
IV.TERO.HNN. ML:1.4 0.000107722385 0.128 AML other m 2018-05-15T19:32:04.77
OB.GAVE.HNN. ML:0 0.00019806121 0.256 AML other m 2018-05-15T19:32:05.23
OB.GAVE.EHN. ML:0 0.00035338955 0.1792 AML other m 2018-05-15T19:32:05.25
IV.T1221.HNE. ML:1.4 9.069852E-5 0.192 AML other m 2018-05-15T19:32:06.37
IV.T1221.EHE. ML:1.4 9.131065E-5 0.2048 AML other m 2018-05-15T19:32:06.37
IV.MF5.EHN. ML:1.4 9.517118E-5 0.1792 AML other m 2018-05-15T19:32:06.28
IV.MF5.EHE. ML:1.5 0.00012937395 0.4608 AML other m 2018-05-15T19:32:06.64
IV.GIGS.HHN. ML:0 3.72E-5 0.1 AML other m 2018-05-15T19:32:07.22
IV.CESI.HHE. ML:1.4 7.521795E-5 0.256 AML other m 2018-05-15T19:32:07.42
IV.GUMA.HHN. ML:0 0.000313 0.24 AML other m 2018-05-15T19:32:07.24
IV.GUMA.HNE. ML:2.1 0.0004219278 0.3328 AML other m 2018-05-15T19:32:07.23
IV.GUMA.HHE. ML:0 0.0003895 0.4 AML other m 2018-05-15T19:32:07.20
IV.CESI.HHN. ML:0 0.00011725 0.28 AML other m 2018-05-15T19:32:07.32
IV.GIGS.HHE. ML:0 2.5391165E-5 0.128 AML other m 2018-05-15T19:32:07.92
IV.ARRO.EHE. ML:0 7.690684E-5 0.1792 AML other m 2018-05-15T19:32:07.89
IV.CSP1.EHE. ML:1.1 3.7677955E-5 0.192 AML other m 2018-05-15T19:32:08.44
IV.CSP1.EHN. ML:0.6 1.6933E-5 0.4608 AML other m 2018-05-15T19:32:08.68
IV.ARRO.EHN. ML:0 6.1361625E-5 0.3328 AML other m 2018-05-15T19:32:11.02
IV.OFFI.HHE. ML:0 0.0002495782 0.6784 AML other m 2018-05-15T19:32:11.79
IV.OFFI.HHN. ML:0 0.00024 0.22 AML other m 2018-05-15T19:32:10.33
IV.MOMA.HHN. ML:0 0.00010805 0.24 AML other m 2018-05-15T19:32:12.61
IV.MOMA.HHE. ML:0 0.0001825 0.24 AML other m 2018-05-15T19:32:12.90
IV.FIAM.HHN. ML:1.1 3.249414E-5 0.5376 AML other m 2018-05-15T19:32:14.11
IV.FAGN.HHE. ML:0 5.437376E-5 0.2048 AML other m 2018-05-15T19:32:15.22
IV.FAGN.HHN. ML:0 6.05E-5 0.26 AML other m 2018-05-15T19:32:16.53
IV.T0110.HHE. ML:0 5.41E-5 1.5 AML other m 2018-05-15T19:32:21.83
IV.FIAM.HHE. ML:1 2.2806285E-5 0.384 AML other m 2018-05-15T19:32:17.67
IV.T0110.HHN. ML:1.6 6.055E-5 0.42 AML other m 2018-05-15T19:32:18.70
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