Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 02-04-2020 and time 23:07:41 (Italy) in region 4 km W Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 4 km W Accumoli (RI), on

  • 02-04-2020 21:07:41 (UTC)
  • 02-04-2020 23:07:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7030, 13.2060 at 13 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
Cittareale RI 10 482 1149
Amatrice RI 11 2657 3806
Arquata del Tronto AP 11 1178 4984
Norcia PG 14 4957 9941
Cascia PG 16 3217 13158
Acquasanta Terme AP 18 2916 16074
Montegallo AP 19 523 16597
Montereale AQ 20 2581 19178

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
42 Km NW of L'Aquila (69753 inhabitants)
48 Km E of Terni (111501 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
87 Km W of Pescara (121014 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km W of Chieti (51815 inhabitants)
89 Km NE of Tivoli (56533 inhabitants)
96 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
Bulletin
Rev1000 		ML 1.4 2020-04-02
21:07:41		 42.7032 13.2063 13 2020-07-18
21:08:41		 Bollettino Sismico Italiano INGV 80367901
Reviewed
Rev100 		ML 1.5 2020-04-02
21:07:41		 42.7033 13.2048 11 2020-04-02
21:14:06		 Sala Sismica INGV-Roma 77800041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-02 21:07:41 ± 0.05
Latitude 42.7032 ± 0.0027
Longitude 13.2063 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80367901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 350
Semi-minor axis of confidence ellipse (meter) 33
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 33
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51801
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 80367901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-21 08:34:40

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 77800041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-02 21:14:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-04-02T21:07:54.72 0.3 undecidable manual S 345 38.2284 94 0.47 67
IV.FAGN.HHZ. 2020-04-02T21:07:52.33 3.0 positive manual P 57.498 0.46 0
IV.TERO.HHZ. 2020-04-02T21:07:52.80 0.3 undecidable manual S 105 33.6441 94 -0.23 70
IV.MOMA.HHZ. 2020-04-02T21:07:51.18 0.6 undecidable manual P 282 53.0025 92 0.01 47
IV.MNTT.EHZ. 2020-04-02T21:07:51.73 0.3 undecidable manual P 38 50.8158 92 0.89 55
IV.MMO1.EHZ. 2020-04-02T21:07:50.29 0.3 undecidable manual S 24 23.8539 98 -0.15 72
IV.SAP2.EHZ. 2020-04-02T21:07:50.25 0.6 undecidable manual P 20 46.4202 93 0.1 47
IV.MC2.EHZ. 2020-04-02T21:07:50.44 0.3 undecidable manual S 357 23.1546 99 0.19 72
IV.CESX.HHZ. 2020-04-02T21:07:50.73 0.3 undecidable manual P 258 51.6039 92 -0.23 67
IV.CAMP.HHZ. 2020-04-02T21:07:50.60 0.3 undecidable manual S 138 24.8529 98 -0.1 73
IV.FIAM.HHZ. 2020-04-02T21:07:50.52 0.6 undecidable manual P 189 48.8178 93 0 47
IV.GIGS.HHZ. 2020-04-02T21:07:49.03 0.3 undecidable manual P 133 40.8258 93 -0.26 69
IV.CESI.HHZ. 2020-04-02T21:07:49.34 0.1 positive manual P 324 41.5251 93 -0.06 95
IV.GUMA.HNE. 2020-04-02T21:07:49.79 3.0 undecidable manual P 0.38 0
IV.MF5.EHZ. 2020-04-02T21:07:49.30 0.3 undecidable manual P 33 37.7289 94 0.48 66
IV.RM33.EHZ. 2020-04-02T21:07:49.84 0.3 undecidable manual S 178 21.5673 100 0.02 75
IV.CSP1.EHZ. 2020-04-02T21:07:49.60 0.3 undecidable manual P 360 43.1235 93 -0.05 71
IV.ARRO.EHZ. 2020-04-02T21:07:48.79 0.3 undecidable manual P 249 38.5281 94 -0.15 70
IV.TERO.HHZ. 2020-04-02T21:07:48.11 0.3 undecidable manual P 105 33.6441 94 -0.08 72
IV.MTRA.HNZ. 2020-04-02T21:07:48.21 0.3 undecidable manual S 69 16.5723 108 -0.33 71
IT.MTCL.HGZ. 2020-04-02T21:07:48.53 0.3 undecidable manual P 333 36.3414 94 -0.08 71
IV.LNSS.HHZ. 2020-04-02T21:07:48.77 0.3 undecidable manual S 231 17.5713 106 -0.01 75
IV.FDMO.HHZ. 2020-04-02T21:07:48.86 0.3 undecidable manual P 345 38.2284 94 -0.04 72
IV.NRCA.HHZ. 2020-04-02T21:07:47.96 0.3 undecidable manual S 333 16.2726 109 -0.5 67
IV.SMA1.EHZ. 2020-04-02T21:07:47.74 0.3 undecidable manual S 127 13.2756 118 0.02 75
IV.CAMP.HHZ. 2020-04-02T21:07:46.84 0.1 positive manual P 138 24.8529 98 0 99
IV.RM33.EHZ. 2020-04-02T21:07:46.41 0.1 positive manual P 178 21.5673 100 0.07 99
IV.MMO1.EHZ. 2020-04-02T21:07:46.63 0.3 undecidable manual P 24 23.8539 98 -0.06 73
IV.T1299.HNZ. 2020-04-02T21:07:46.98 0.3 undecidable manual S 141 9.879 130 0.01 76
IV.MC2.EHZ. 2020-04-02T21:07:46.62 0.3 undecidable manual P 357 23.1546 99 0.03 75
IV.LNSS.HHZ. 2020-04-02T21:07:45.79 0.1 positive manual P 231 17.5713 106 0.05 100
IV.SMA1.EHZ. 2020-04-02T21:07:45.22 0.3 undecidable manual P 127 13.2756 118 0.09 74
IV.NRCA.HHZ. 2020-04-02T21:07:45.46 0.1 negative manual P 333 16.2726 109 -0.09 98
IV.MTRA.HNZ. 2020-04-02T21:07:45.56 0.1 positive manual P 69 16.5723 108 -0.04 100
IV.T1299.HNZ. 2020-04-02T21:07:44.90 0.1 positive manual P 141 9.879 130 0.21 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.9 0.0006587323000000001 0.2432 AML other m 2020-04-02T21:07:48.87
IV.MTRA.EHN. ML:1.8 0.0005753797 0.1408 AML other m 2020-04-02T21:07:49.05
IV.MTRA.HNE. ML:1.9 0.0006611747 0.1792 AML other m 2020-04-02T21:07:49.03
IV.MTRA.HNN. ML:1.8 0.00056609635 0.128 AML other m 2020-04-02T21:07:48.98
IV.RM33.EHN. ML:1.6 0.00026107444999999996 0.0768 AML other m 2020-04-02T21:07:50.30
IV.RM33.HNN. ML:1.6 0.00026164455 0.0768 AML other m 2020-04-02T21:07:50.26
IV.RM33.HNE. ML:1.6 0.0002434555 0.1792 AML other m 2020-04-02T21:07:50.20
IV.RM33.EHE. ML:1.6 0.00026024650000000006 0.2304 AML other m 2020-04-02T21:07:50.09
IV.CAMP.HHE. ML:1.0 0.00005494568 0.2816 AML other m 2020-04-02T21:07:50.78
IV.CAMP.HHN. ML:0.9 0.000043926005000000006 0.3072 AML other m 2020-04-02T21:07:54.89
IV.TERO.HHN. ML:1.7 0.00022545195000000002 0.064 AML other m 2020-04-02T21:07:53.48
IV.TERO.HHE. ML:1.6 0.000154004 0.128 AML other m 2020-04-02T21:07:53.70
IV.TERO.HNN. ML:1.8 0.00023816524999999998 0.064 AML other m 2020-04-02T21:07:53.46
IV.TERO.HNE. ML:1.6 0.00017054635 0.1024 AML other m 2020-04-02T21:07:54.01
IV.ARRO.EHN. ML:1.3 0.00007654821500000001 0.2048 AML other m 2020-04-02T21:07:57.04
IV.ARRO.EHE. ML:1.2 0.000055235014999999997 0.2048 AML other m 2020-04-02T21:07:49.46
IV.FDMO.HHN. ML:1.3 0.000068282135 0.1536 AML other m 2020-04-02T21:07:55.08
IV.FDMO.HHE. ML:1.2 0.00005536886 0.2176 AML other m 2020-04-02T21:07:57.15
IV.GIGS.HHN. ML:0.8 0.00001857857 0.2816 AML other m 2020-04-02T21:07:54.92
IV.GIGS.HHE. ML:0.8 0.000018937000000000002 0.1408 AML other m 2020-04-02T21:07:55.30
IV.MF5.EHE. ML:1.5 0.00012352596 0.4096 AML other m 2020-04-02T21:07:56.03
IV.MF5.EHN. ML:1.4 0.000100430395 0.2816 AML other m 2020-04-02T21:07:57.21
IV.CESI.HHN. ML:1.5 0.000102813115 0.2048 AML other m 2020-04-02T21:07:57.87
IV.CESI.HNN. ML:1.7 0.00015395248 0.8576 AML other m 2020-04-02T21:08:02.12
IV.CESI.HNE. ML:1.6 0.000126515335 0.5376 AML other m 2020-04-02T21:08:06.32
IV.CESI.HHE. ML:1.1 0.00004111611499999999 0.1024 AML other m 2020-04-02T21:07:56.07
IV.CSP1.EHE. ML:1.4 0.00006944588 0.2304 AML other m 2020-04-02T21:07:56.72
IV.CSP1.EHN. ML:1.2 0.0000453264 0.2176 AML other m 2020-04-02T21:07:59.46
IV.CESX.HHN. ML:1.2 0.000033278175 0.3712 AML other m 2020-04-02T21:08:01.65
IV.CESX.HHE. ML:1.1 0.000028347685000000002 0.4096 AML other m 2020-04-02T21:08:03.53
IV.MOMA.HHN. ML:1.6 0.00008325604 0.192 AML other m 2020-04-02T21:08:00.43
IV.MOMA.HHE. ML:1.6 0.000088076775 0.1536 AML other m 2020-04-02T21:08:00.68
IV.MOMA.HNN. ML:1.9 0.00017620049999999998 0.8704 AML other m 2020-04-02T21:08:05.98
IV.MOMA.HNE. ML:1.6 0.00010296532 0.1536 AML other m 2020-04-02T21:08:00.61
IV.MNTT.EHE. ML:1.7 0.0001216844 0.1792 AML other m 2020-04-02T21:08:01.00
IV.MNTT.EHN. ML:1.8 0.00014178480999999999 0.2944 AML other m 2020-04-02T21:08:01.96
IV.FAGN.HHN. ML:1.4 0.000051565045 0.3968 AML other m 2020-04-02T21:08:06.28
IV.FAGN.HHE. ML:1.4 0.000061019365000000005 0.3328 AML other m 2020-04-02T21:08:09.42
IV.VCEL.EHE. ML:1.4 0.00004557659 0.192 AML other m 2020-04-02T21:08:04.03
IV.VCEL.EHN. ML:1.3 0.000040986839999999995 0.1152 AML other m 2020-04-02T21:08:04.77
IV.ATCC.EHN. ML:1.2 0.0000230398635 0.2304 AML other m 2020-04-02T21:08:04.80
IV.ATCC.EHE. ML:1.2 0.00002547927 0.256 AML other m 2020-04-02T21:08:06.80
IV.SRES.HHN. ML:0.8 0.000010643410999999999 0.512 AML other m 2020-04-02T21:08:11.41
IV.SRES.HHE. ML:1.0 0.000012976903000000001 0.2432 AML other m 2020-04-02T21:08:09.99
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