Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-02-2019 and time 01:05:45 (Italy) in region 4 km SE Accumoli (RI)

A magnitude ML 1.5 earthquake occured in region: 4 km SE Accumoli (RI), on

  • 17-02-2019 00:05:45 (UTC)
  • 17-02-2019 01:05:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6780, 13.2880 at 9 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.

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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
Accumoli RI 4 667 667
Amatrice RI 5 2657 3324
Arquata del Tronto AP 11 1178 4502
Cittareale RI 12 482 4984
Acquasanta Terme AP 14 2916 7900
Campotosto AQ 15 542 8442
Montereale AQ 17 2581 11023
Capitignano AQ 18 665 11688
Valle Castellana TE 18 977 12665
Montegallo AP 19 523 13188
Cortino TE 19 656 13844
Rocca Santa Maria TE 20 537 14381

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Teramo (54892 inhabitants)
37 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
89 Km NE of Tivoli (56533 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
Bulletin
Rev1000 		ML 1.5 2019-02-17
00:05:45		 42.6782 13.2877 9 2019-08-22
08:24:55		 Bollettino Sismico Italiano INGV 67406371
Reviewed
Rev100 		ML 1.5 2019-02-17
00:05:45		 42.6823 13.2858 9 2019-02-17
00:12:24		 Sala Sismica INGV-Roma 65617201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-17 00:05:45 ± 0.06
Latitude 42.6782 ± 0.0036
Longitude 13.2877 ± 0.0049
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67406371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 365
Semi-minor axis of confidence ellipse (meter) 271
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.04407
Epicentral distance of station farthest from the epicenter (degree) 0.43078
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 65617201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-17 00:12:24

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 67406371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-19 12:53:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2019-02-17T00:06:00.77 0.6 undecidable manual S 256 44.0226 50 0.62 41
IV.CESI.HHZ. 2019-02-17T00:06:00.90 0.6 undecidable manual S 319 47.8188 50 -0.27 45
IV.GUMA.HHZ. 2019-02-17T00:06:00.55 0.3 undecidable manual S 5 42.8238 50 0.71 59
IV.MF5.EHZ. 2019-02-17T00:05:59.10 0.1 undecidable manual S 22 37.1295 50 0.79 77
IV.GIGS.HHZ. 2019-02-17T00:05:57.10 0.1 undecidable manual S 137 34.1436 50 -0.42 89
IV.GAVE.EHZ. 2019-02-17T00:05:56.40 0.6 undecidable manual S 273 32.1456 50 -0.58 42
IV.MC2.EHZ. 2019-02-17T00:05:55.70 0.1 undecidable manual S 343 27.0507 108 0.35 91
IV.CESI.HHZ. 2019-02-17T00:05:54.23 0.1 undecidable manual P 319 47.8188 50 -0.3 89
IV.MMO1.EHZ. 2019-02-17T00:05:54.40 0.1 undecidable manual S 7 24.753 110 -0.18 95
IV.TERO.HHZ. 2019-02-17T00:05:54.80 0.1 undecidable manual S 103 26.5512 108 -0.36 91
IV.NRCA.HHZ. 2019-02-17T00:05:53.40 0.1 undecidable manual S 321 22.2555 112 -0.38 91
IV.LNSS.HHZ. 2019-02-17T00:05:53.80 0.1 undecidable manual S 248 21.867 112 0.16 96
IV.RM33.EHZ. 2019-02-17T00:05:53.59 0.6 undecidable manual S 198 19.6692 114 0.64 42
IV.GUMA.HHZ. 2019-02-17T00:05:53.91 0.1 negative manual P 5 42.8238 50 0.15 93
IV.MF5.EHZ. 2019-02-17T00:05:53.20 0.1 undecidable manual P 22 37.1295 50 0.32 90
IV.ARRO.EHZ. 2019-02-17T00:05:53.82 0.1 undecidable manual P 256 44.0226 50 -0.12 93
IV.GIGS.HHZ. 2019-02-17T00:05:52.16 0.1 undecidable manual P 137 34.1436 50 -0.26 92
IV.CAMP.HHZ. 2019-02-17T00:05:52.70 0.1 undecidable manual S 148 18.6702 115 0.08 98
IV.GAVE.EHZ. 2019-02-17T00:05:51.74 0.1 positive manual P 273 32.1456 50 -0.37 90
IV.MC2.EHZ. 2019-02-17T00:05:51.03 0.1 negative manual P 343 27.0507 108 -0.14 95
IV.TERO.HHZ. 2019-02-17T00:05:50.91 0.1 positive manual P 103 26.5512 108 -0.15 95
IV.NRCA.HHZ. 2019-02-17T00:05:50.00 0.1 negative manual P 321 22.2555 112 -0.26 94
IV.LNSS.HHZ. 2019-02-17T00:05:50.23 0.1 negative manual P 248 21.867 112 0.05 98
IV.MTRA.HNZ. 2019-02-17T00:05:50.60 0.1 undecidable manual S 45 12.4764 125 -0.16 98
IV.MMO1.EHZ. 2019-02-17T00:05:50.58 0.1 positive manual P 7 24.753 110 -0.14 96
IV.RM33.EHZ. 2019-02-17T00:05:49.94 0.1 negative manual P 198 19.6692 114 0.16 96
IV.SMA1.EHZ. 2019-02-17T00:05:49.83 0.6 undecidable manual S 144 6.5934 143 0.55 45
IV.CAMP.HHZ. 2019-02-17T00:05:49.78 0.1 positive manual P 148 18.6702 115 0.19 96
IV.MTRA.HNZ. 2019-02-17T00:05:48.55 0.1 positive manual P 45 12.4764 125 0.03 100
IV.T1299.HNN. 2019-02-17T00:05:48.87 0.3 undecidable manual S 185 4.8951 151 -0.1 75
IV.T1299.HNN. 2019-02-17T00:05:47.60 0.1 undecidable manual P 185 4.8951 151 0.12 100
IV.SMA1.EHZ. 2019-02-17T00:05:47.80 0.1 positive manual P 144 6.5934 143 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.5 0.00058694725 0.14 AML other m 2019-02-17T00:05:50.47
IV.MTRA.EHN. ML:1.6 0.000516 1.02 AML other m 2019-02-17T00:05:50.19
IV.MTRA.HNN. ML:1.6 0.00048249999999999996 1.52 AML other m 2019-02-17T00:05:51.06
IV.MTRA.HNE. ML:1.7 0.0006449352500000001 0.2 AML other m 2019-02-17T00:05:51.24
IV.MTRA.EHE. ML:1.8 0.0006532979 0.2 AML other m 2019-02-17T00:05:51.25
IV.SMA1.EHN. ML:1.5 0.0005076086 0.34 AML other m 2019-02-17T00:05:51.77
IV.CAMP.HHE. ML:0.8 0.0000564 0.28 AML other m 2019-02-17T00:05:52.97
IV.CAMP.HHN. ML:0.8 0.000057069415 0.22 AML other m 2019-02-17T00:05:52.95
IV.RM33.EHN. ML:1.2 0.000124 0.46 AML other m 2019-02-17T00:05:53.33
IV.NRCA.HHN. ML:1.5 0.0002115 0.12 AML other m 2019-02-17T00:05:53.82
IV.NRCA.HHE. ML:1.5 0.0002235 0.12 AML other m 2019-02-17T00:05:53.87
IV.LNSS.HHN. ML:1.8 0.00043454965 0.18 AML other m 2019-02-17T00:05:54.06
IV.LNSS.HHE. ML:1.7 0.00033350000000000003 0.2 AML other m 2019-02-17T00:05:54.10
IV.TERO.HHN. ML:1.5 0.00017299999999999998 0.3 AML other m 2019-02-17T00:05:55.51
IV.TERO.HHE. ML:1.4 0.00015050000000000003 0.34 AML other m 2019-02-17T00:05:55.59
IV.RM33.EHE. ML:1.2 0.000134111205 0.3 AML other m 2019-02-17T00:05:55.93
IV.GAVE.EHN. ML:1.6 0.0001702921 0.54 AML other m 2019-02-17T00:05:57.06
IV.GAVE.EHE. ML:1.6 0.0001665 0.2 AML other m 2019-02-17T00:05:57.49
IV.GUMA.HHE. ML:1.8 0.0001855 0.36 AML other m 2019-02-17T00:06:00.96
IV.GUMA.HHN. ML:1.7 0.00015160905000000002 0.36 AML other m 2019-02-17T00:06:01.55
IV.CESI.HHE. ML:1.2 0.000037913845 0.3 AML other m 2019-02-17T00:06:01.72
IV.CESI.HHN. ML:1.5 0.00007895 0.34 AML other m 2019-02-17T00:06:01.72
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