Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 10-04-2019 and time 13:23:41 (Italy) in region 4 km E Accumoli (RI)

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

  • 10-04-2019 11:23:41 (UTC)
  • 10-04-2019 13:23:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6840, 13.2930 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.

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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 6 2657 3324
Arquata del Tronto AP 10 1178 4502
Cittareale RI 13 482 4984
Acquasanta Terme AP 14 2916 7900
Campotosto AQ 15 542 8442
Valle Castellana TE 18 977 9419
Montegallo AP 18 523 9942
Montereale AQ 18 2581 12523
Capitignano AQ 18 665 13188
Cortino TE 19 656 13844
Rocca Santa Maria TE 19 537 14381

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Teramo (54892 inhabitants)
38 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 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 1.6 2019-04-10
11:23:41		 42.6842 13.2933 11 2019-08-22
08:24:56		 Bollettino Sismico Italiano INGV 67669891
Reviewed
Rev100 		ML 1.7 2019-04-10
11:23:41		 42.6857 13.2933 11 2019-04-10
11:29:27		 Sala Sismica INGV-Roma 67429361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-10 11:23:41 ± 0.06
Latitude 42.6842 ± 0.0027
Longitude 13.2933 ± 0.0049
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 67669891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 386
Semi-minor axis of confidence ellipse (meter) 334
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 106
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.66010
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 67669891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-17 08:32:47

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 67429361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-10 11:29:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2019-04-10T11:24:48.95 3.0 undecidable manual Sn 1.47 0
IV.MRB1.HNZ. 2019-04-10T11:24:40.05 3.0 undecidable manual Sn -0.33 0
IV.MAON.HHZ. 2019-04-10T11:24:36.79 3.0 undecidable manual Sg 5.85 0
IV.RIBO.EHZ.01 2019-04-10T11:24:13.00 3.0 negative manual Pg 2.98 0
IV.ARVD.HHZ. 2019-04-10T11:24:08.11 3.0 undecidable manual S -3.38 0
IV.EL6.EHZ. 2019-04-10T11:24:03.94 0.1 undecidable manual S 348 73.2711 50 0.31 84
IV.SNTG.HHZ. 2019-04-10T11:24:03.47 0.3 undecidable manual S 336 69.4749 50 0.84 53
IV.MOMA.HHZ. 2019-04-10T11:24:00.99 0.1 undecidable manual S 283 60.3951 50 0.79 74
IV.CESX.HHZ. 2019-04-10T11:24:00.05 0.3 undecidable manual S 262 58.2972 50 0.42 64
IV.PF6.EHN. 2019-04-10T11:23:58.08 0.1 undecidable manual S 351 51.0156 50 0.4 86
IV.FIAM.HNN. 2019-04-10T11:23:57.27 0.3 undecidable manual S 197 48.4182 50 0.28 67
IV.CESI.HHZ. 2019-04-10T11:23:56.67 0.1 undecidable manual S 318 47.619 50 -0.11 92
IV.FDMO.HHZ. 2019-04-10T11:23:55.19 0.1 undecidable manual S 337 42.5241 50 -0.24 91
IV.ARRO.EHZ. 2019-04-10T11:23:55.46 0.1 undecidable manual S 255 44.622 50 -0.53 84
IV.EL6.EHZ. 2019-04-10T11:23:54.71 0.1 undecidable manual P 348 73.2711 50 0.39 83
IT.MTCL.HGZ. 2019-04-10T11:23:54.91 0.3 undecidable manual S 325 41.8248 50 -0.34 67
IV.MF5.EHZ. 2019-04-10T11:23:54.57 0.1 undecidable manual S 22 36.3414 50 0.81 77
IV.FEMA.HNE. 2019-04-10T11:23:53.84 0.3 undecidable manual S 327 36.6411 50 -0.02 72
IV.GIGS.HHZ. 2019-04-10T11:23:53.00 0.1 undecidable manual S 138 34.3434 50 -0.24 92
IV.SNTG.HHZ. 2019-04-10T11:23:53.80 0.3 undecidable manual P 336 69.4749 50 0.05 67
IV.GAVE.EHZ. 2019-04-10T11:23:52.74 0.1 undecidable manual S 272 32.5452 50 -0.03 96
IV.MOMA.HHZ. 2019-04-10T11:23:52.47 0.1 undecidable manual P 283 60.3951 50 0.12 90
IV.MC2.EHZ. 2019-04-10T11:23:51.01 0.1 undecidable manual S 341 26.5512 50 -0.17 95
IV.CESX.HHZ. 2019-04-10T11:23:51.89 0.3 undecidable manual P 262 58.2972 50 -0.13 68
IV.MNTT.EHZ. 2019-04-10T11:23:51.40 3.0 negative manual P 0.72 0
IV.CSP1.EHZ. 2019-04-10T11:23:50.01 0.1 undecidable manual P 351 45.8208 50 -0.08 93
IV.PF6.EHN. 2019-04-10T11:23:50.81 0.1 undecidable manual P 351 51.0156 50 -0.08 92
IV.LNSS.HHZ. 2019-04-10T11:23:50.06 0.1 undecidable manual S 246 22.5552 50 -0.04 98
IV.FIAM.HNN. 2019-04-10T11:23:50.99 0.3 undecidable manual P 197 48.4182 50 0.5 64
IV.MMO1.EHZ. 2019-04-10T11:23:50.14 0.1 undecidable manual S 6 24.0537 50 -0.35 91
IV.CESI.HHZ. 2019-04-10T11:23:50.12 0.1 positive manual P 318 47.619 50 -0.25 90
IV.TERO.HHZ. 2019-04-10T11:23:50.75 0.1 undecidable manual S 105 26.2515 50 -0.33 91
IV.OFFI.HHZ. 2019-04-10T11:23:50.39 0.1 undecidable manual P 49 42.3243 50 0.83 75
IT.MTCL.HGZ. 2019-04-10T11:23:49.20 0.3 undecidable manual P 325 41.8248 50 -0.29 67
IV.RM33.EHZ. 2019-04-10T11:23:49.59 0.1 undecidable manual S 198 20.4684 50 0.04 98
IV.FDMO.HHZ. 2019-04-10T11:23:49.36 0.1 undecidable manual P 337 42.5241 50 -0.23 91
IV.ARRO.EHZ. 2019-04-10T11:23:49.68 0.1 positive manual P 255 44.622 50 -0.24 90
IV.NRCA.HHZ. 2019-04-10T11:23:49.38 0.1 undecidable manual S 319 22.0668 50 -0.59 86
IV.GIGS.HHZ. 2019-04-10T11:23:48.07 0.1 positive manual P 138 34.3434 50 -0.26 92
IV.MF5.EHZ. 2019-04-10T11:23:48.98 0.1 undecidable manual P 22 36.3414 50 0.35 90
IV.FEMA.HNE. 2019-04-10T11:23:48.71 0.3 undecidable manual P 327 36.6411 50 0.02 72
IV.MC2.EHZ. 2019-04-10T11:23:47.11 0.1 positive manual P 341 26.5512 50 -0.03 97
IV.GAVE.EHZ. 2019-04-10T11:23:47.86 0.1 positive manual P 272 32.5452 50 -0.2 93
IV.MMO1.EHZ. 2019-04-10T11:23:46.57 0.1 negative manual P 6 24.0537 50 -0.17 95
IV.NRCA.HHZ. 2019-04-10T11:23:46.17 0.1 positive manual P 319 22.0668 50 -0.27 93
IV.TERO.HHZ. 2019-04-10T11:23:46.95 0.1 positive manual P 105 26.2515 50 -0.13 95
IV.SMA1.EHZ. 2019-04-10T11:23:46.00 0.1 undecidable manual S 150 6.8931 148 -0.14 99
IV.RM33.EHZ. 2019-04-10T11:23:46.27 0.1 positive manual P 198 20.4684 50 0.07 97
IV.MTRA.EHZ. 2019-04-10T11:23:46.73 0.1 undecidable manual S 46 11.5773 134 -0.46 91
IV.LNSS.HHZ. 2019-04-10T11:23:46.48 0.1 positive manual P 246 22.5552 50 -0.03 98
IV.T1299.HNN. 2019-04-10T11:23:46.06 0.1 undecidable manual S 189 5.5944 153 0.14 99
IV.MTRA.EHZ. 2019-04-10T11:23:44.81 0.1 positive manual P 46 11.5773 134 -0.02 100
IV.T1299.HNN. 2019-04-10T11:23:44.44 0.1 negative manual P 189 5.5944 153 0.34 95
IV.SMA1.EHZ. 2019-04-10T11:23:44.48 0.1 negative manual P 150 6.8931 148 0.25 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:2.1 0.0016660099999999999 0.1856 AML other m 2019-04-10T11:23:46.30
IV.SMA1.EHE. ML:1.8 0.0009138537999999999 0.1024 AML other m 2019-04-10T11:23:46.49
IV.RM33.EHE. ML:1.4 0.00018688525 0.1408 AML other m 2019-04-10T11:23:50.35
IV.RM33.EHN. ML:1.4 0.0001847873 0.1792 AML other m 2019-04-10T11:23:49.98
IV.RM33.HNN. ML:1.5 0.00021420675 0.192 AML other m 2019-04-10T11:23:49.88
IV.LNSS.HNE. ML:1.6 0.0002838017 0.128 AML other m 2019-04-10T11:23:50.80
IV.LNSS.HHE. ML:1.7 0.00031560085 0.1216 AML other m 2019-04-10T11:23:51.31
IV.LNSS.HNN. ML:1.7 0.0003097187 0.128 AML other m 2019-04-10T11:23:50.94
IV.LNSS.HHN. ML:1.7 0.0003274613 0.1408 AML other m 2019-04-10T11:23:50.87
IV.TERO.HNE. ML:1.4 0.0001262185 0.1024 AML other m 2019-04-10T11:23:51.99
IV.TERO.HHN. ML:1.6 0.0002241038 0.16 AML other m 2019-04-10T11:23:52.30
IV.TERO.HHE. ML:1.6 0.00023432535 0.1216 AML other m 2019-04-10T11:23:52.04
IV.GAVE.EHN. ML:1.6 0.00017237115 0.256 AML other m 2019-04-10T11:23:52.85
IV.GAVE.HNE. ML:1.7 0.00019987939999999998 0.128 AML other m 2019-04-10T11:23:53.00
IV.MF5.EHN. ML:1.7 0.00019929450000000001 0.2368 AML other m 2019-04-10T11:23:54.82
IV.MF5.EHE. ML:1.7 0.0002023103 0.2432 AML other m 2019-04-10T11:23:55.33
IV.FDMO.HHN. ML:1.4 0.000078927335 0.3008 AML other m 2019-04-10T11:23:55.48
IV.CESI.HHE. ML:1.5 0.000095612865 0.224 AML other m 2019-04-10T11:23:57.95
IV.CESI.HHN. ML:1.6 0.00011715899999999998 0.2176 AML other m 2019-04-10T11:23:58.32
IV.OFFI.HHE. ML:1.5 0.000094165055 0.3008 AML other m 2019-04-10T11:23:59.03
IV.MNTT.EHN. ML:1.8 0.00016077615 0.2176 AML other m 2019-04-10T11:24:00.02
IV.CESX.HHN. ML:1.3 0.000045969735 0.2816 AML other m 2019-04-10T11:24:02.00
IV.MOMA.HHN. ML:1.4 0.00005273932500000001 0.1984 AML other m 2019-04-10T11:24:02.90
IV.MOMA.HHE. ML:1.4 0.00004600147 0.16 AML other m 2019-04-10T11:24:02.84
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