Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 03-04-2020 and time 04:01:03 (UTC) in region 8 km W Cittareale (RI)

A magnitude ML 1.4 earthquake occured in region: 8 km W Cittareale (RI), on

  • 03-04-2020 04:01:03 (UTC)
  • 03-04-2020 06:01:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6150, 13.0590 at 12 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
Cittareale RI 8 482 482
Monteleone di Spoleto PG 10 599 1081
Leonessa RI 10 2435 3516
Posta RI 11 694 4210
Cascia PG 12 3217 7427
Borbona RI 13 617 8044
Poggiodomo PG 15 117 8161
Polino TR 18 233 8394
Accumoli RI 18 667 9061
Micigliano RI 18 127 9188
Montereale AQ 18 2581 11769
Amatrice RI 19 2657 14426
Poggio Bustone RI 19 2055 16481
Rivodutri RI 20 1253 17734
Norcia PG 20 4957 22691

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Terni (111501 inhabitants)
40 Km NW of L'Aquila (69753 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
53 Km W of Teramo (54892 inhabitants)
74 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km N of Tivoli (56533 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
81 Km E of Viterbo (67173 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
96 Km W of Chieti (51815 inhabitants)
96 Km W of Pescara (121014 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 2020-04-03
04:01:03		 42.6153 13.0593 13 2020-07-18
21:08:31		 Bollettino Sismico Italiano INGV 77973041
Reviewed
Rev100 		ML 1.4 2020-04-03
04:01:03		 42.6173 13.0433 13 2020-04-03
04:07:16		 Sala Sismica INGV-Roma 77814311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-03 04:01:03 ± 0.05
Latitude 42.6153 ± 0.0027
Longitude 13.0593 ± 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 77973041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 32
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.65471
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 77973041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-13 21:49:46

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 77814311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-03 04:07:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ROSPO.HHZ. 2020-04-03T04:01:49.52 3.0 undecidable manual S 0.68 0
IV.ROSPO.HHZ. 2020-04-03T04:01:29.43 3.0 negative manual P 0.37 0
IV.TERO.HHZ. 2020-04-03T04:01:18.05 0.6 undecidable manual S 89 44.4222 92 -0.24 45
IV.MC2.EHZ. 2020-04-03T04:01:16.13 0.6 undecidable manual S 18 34.4433 94 0.5 43
IV.T0110.HHZ. 2020-04-03T04:01:16.55 0.3 undecidable manual P 126 72.6717 91 -0.03 67
IV.FIAM.HHZ. 2020-04-03T04:01:16.79 0.6 undecidable manual S 173 38.8278 93 0 47
IV.ATCC.EHZ. 2020-04-03T04:01:16.57 0.3 undecidable manual P 332 71.7726 91 0.13 65
IV.MF5.EHZ. 2020-04-03T04:01:14.04 0.3 undecidable manual P 38 52.6029 92 0.55 61
IV.CAMP.HHZ. 2020-04-03T04:01:14.58 0.3 undecidable manual S 107 29.9478 95 0.17 70
IV.MTRA.EHZ. 2020-04-03T04:01:14.61 0.3 undecidable manual S 60 31.6461 94 -0.26 68
IV.ARRO.EHZ. 2020-04-03T04:01:13.10 0.3 undecidable manual S 261 24.3534 97 0.18 70
IV.CSP1.EHZ. 2020-04-03T04:01:13.84 0.3 undecidable manual P 13 54.1014 92 0.12 67
IV.GIGS.HHZ. 2020-04-03T04:01:12.11 0.1 undecidable manual P 113 45.7209 92 -0.31 88
IV.NRCA.HHZ. 2020-04-03T04:01:12.65 0.3 undecidable manual S 10 24.5532 97 -0.35 68
IV.MOMA.HHZ. 2020-04-03T04:01:12.18 0.1 undecidable manual P 298 45.0216 92 -0.14 92
IV.SMA1.EHZ. 2020-04-03T04:01:12.79 0.3 undecidable manual S 86 22.5552 98 0.32 69
IV.CESI.HHZ. 2020-04-03T04:01:12.14 0.1 undecidable manual P 344 45.0216 92 -0.17 91
IV.FDMO.HHZ. 2020-04-03T04:01:12.69 0.3 undecidable manual P 3 46.7199 92 0.11 68
IV.TERO.HHZ. 2020-04-03T04:01:11.99 3.0 undecidable manual P 89 44.4222 92 -0.24 89
IV.FIAM.HHZ. 2020-04-03T04:01:11.27 0.1 undecidable manual P 173 38.8278 93 -0.09 94
IV.CESX.HHZ. 2020-04-03T04:01:11.20 0.3 undecidable manual P 269 38.628 93 -0.13 70
IV.RM33.EHZ. 2020-04-03T04:01:11.15 0.1 undecidable manual S 133 17.3715 105 0.06 98
IV.T1299.HNZ. 2020-04-03T04:01:11.49 0.3 undecidable manual S 83 18.2706 103 0.15 72
IV.MMO1.EHZ. 2020-04-03T04:01:11.13 0.1 undecidable manual P 35 38.3283 93 -0.15 92
IV.MC2.EHZ. 2020-04-03T04:01:10.73 0.3 undecidable manual P 18 34.4433 94 0.04 71
IV.MTRA.EHZ. 2020-04-03T04:01:10.11 0.1 undecidable manual P 60 31.6461 94 -0.15 93
IV.SMA1.EHZ. 2020-04-03T04:01:09.08 0.1 positive manual P 86 22.5552 98 0.21 94
IV.CAMP.HHZ. 2020-04-03T04:01:09.98 0.1 undecidable manual P 107 29.9478 95 -0.01 96
IV.ARRO.EHZ. 2020-04-03T04:01:09.02 0.1 positive manual P 261 24.3534 97 -0.11 96
IV.RM33.EHZ. 2020-04-03T04:01:08.18 0.3 undecidable manual P 133 17.3715 105 0.1 73
IV.T1299.HNZ. 2020-04-03T04:01:08.36 0.1 undecidable manual P 83 18.2706 103 0.14 96
IV.LNSS.HHZ. 2020-04-03T04:01:08.19 0.3 undecidable manual S 228 2.0979 168 -0.03 74
IV.NRCA.HHZ. 2020-04-03T04:01:08.98 0.1 undecidable manual P 10 24.5532 97 -0.2 94
IV.LNSS.HHZ. 2020-04-03T04:01:06.52 0.1 undecidable manual P 228 2.0979 168 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.5 0.0005335 0.3 AML other m 2020-04-03T04:01:08.58
IV.LNSS.HHN. ML:1.6 0.000628 0.84 AML other m 2020-04-03T04:01:09.06
IV.RM33.EHE. ML:1.7 0.00035499999999999996 0.18 AML other m 2020-04-03T04:01:11.44
IV.RM33.EHN. ML:1.8 0.000514 0.48 AML other m 2020-04-03T04:01:11.31
IV.SMA1.EHN. ML:1.8 0.0004295 0.54 AML other m 2020-04-03T04:01:13.12
IV.SMA1.EHE. ML:2.2 0.0011149999999999999 0.2 AML other m 2020-04-03T04:01:13.16
IV.NRCA.HHN. ML:1.5 0.00018099999999999998 0.7 AML other m 2020-04-03T04:01:13.99
IV.ARRO.EHN. ML:1.5 0.00017199999999999998 0.16 AML other m 2020-04-03T04:01:13.77
IV.NRCA.HHE. ML:1.5 0.000191 0.86 AML other m 2020-04-03T04:01:13.84
IV.ARRO.EHE. ML:1.3 0.0001185 0.82 AML other m 2020-04-03T04:01:14.81
IV.MTRA.EHN. ML:1.6 0.0001965 1 AML other m 2020-04-03T04:01:15.28
IV.MTRA.EHE. ML:1.7 0.00020150000000000002 0.44 AML other m 2020-04-03T04:01:15.31
IV.CAMP.HHN. ML:0.8 0.000031899999999999996 1.58 AML other m 2020-04-03T04:01:16.97
IV.CESX.HHN. ML:1.2 0.00004755 1.3 AML other m 2020-04-03T04:01:17.74
IV.CAMP.HHE. ML:0.9 0.00003825 0.76 AML other m 2020-04-03T04:01:17.39
IV.FIAM.HHN. ML:1.0 0.000032550000000000005 0.36 AML other m 2020-04-03T04:01:17.68
IV.FIAM.HHE. ML:0.9 0.000029449999999999998 0.3 AML other m 2020-04-03T04:01:17.59
IV.CESX.HHE. ML:1.1 0.00003755 0.56 AML other m 2020-04-03T04:01:18.07
IV.TERO.HHN. ML:1.3 0.000056149999999999996 1.12 AML other m 2020-04-03T04:01:19.04
IV.MOMA.HHE. ML:1.4 0.0000674 0.3 AML other m 2020-04-03T04:01:19.32
IV.CESI.HHN. ML:1.4 0.00007785000000000001 0.36 AML other m 2020-04-03T04:01:19.32
IV.TERO.HHE. ML:1.4 0.00007469999999999999 0.72 AML other m 2020-04-03T04:01:19.56
IV.FDMO.HHE. ML:1.3 0.0000565 0.2 AML other m 2020-04-03T04:01:19.97
IV.FDMO.HHN. ML:1.2 0.000038 0.12 AML other m 2020-04-03T04:01:19.84
IV.MOMA.HHN. ML:1.3 0.0000612 0.18 AML other m 2020-04-03T04:01:20.11
IV.CESI.HHE. ML:1.1 0.0000389 0.6 AML other m 2020-04-03T04:01:20.37
IV.ATCC.EHN. ML:1.4 0.0000404 1.68 AML other m 2020-04-03T04:01:28.89
IV.ATCC.EHE. ML:1.4 0.0000382 0.7 AML other m 2020-04-03T04:01:28.57
IV.MURB.HHE. ML:1.8 0.00007980000000000002 0.3 AML other m 2020-04-03T04:01:32.55
IV.MURB.HHN. ML:1.8 0.00007685 0.3 AML other m 2020-04-03T04:01:33.25
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