Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 31-03-2020 and time 17:56:41 (Italy) in region 2 km W Barete (AQ)

A magnitude ML 1.5 earthquake occured in region: 2 km W Barete (AQ), on

  • 31-03-2020 15:56:41 (UTC)
  • 31-03-2020 17:56:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4590, 13.2580 at 15 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
Barete AQ 2 737 737
Cagnano Amiterno AQ 3 1369 2106
Pizzoli AQ 4 4326 6432
Montereale AQ 7 2581 9013
Capitignano AQ 8 665 9678
Scoppito AQ 10 3727 13405
Borbona RI 12 617 14022
Campotosto AQ 14 542 14564
Posta RI 15 694 15258
Antrodoco RI 15 2588 17846
Micigliano RI 17 127 17973
L'Aquila AQ 17 69753 87726
Borgo Velino RI 17 972 88698
Tornimparte AQ 19 3187 91885
Amatrice RI 19 2657 94542
Cittareale RI 20 482 95024
Lucoli AQ 20 1011 96035
Castel Sant'Angelo RI 20 1308 97343

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of L'Aquila (69753 inhabitants)
43 Km SW of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
67 Km NE of Tivoli (56533 inhabitants)
67 Km NE of Guidonia Montecelio (88673 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
76 Km W of Chieti (51815 inhabitants)
79 Km W of Pescara (121014 inhabitants)
90 Km NE of Roma (2864731 inhabitants)
95 Km NE of Velletri (53303 inhabitants)
95 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 1.5 2020-03-31
15:56:41		 42.4588 13.2578 15 2020-07-18
21:08:33		 Bollettino Sismico Italiano INGV 78315091
Reviewed
Rev100 		ML 1.5 2020-03-31
15:56:42		 42.4638 13.2565 14 2020-03-31
16:06:28		 Sala Sismica INGV-Roma 77731071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-31 15:56:41 ± 0.05
Latitude 42.4588 ± 0.0027
Longitude 13.2578 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78315091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 294
Semi-minor axis of confidence ellipse (meter) 113
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 231
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63402
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 78315091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-17 10:37:39

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 77731071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-31 16:06:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PE3.EHZ. 2020-03-31T15:57:22.17 3.0 undecidable manual S -0.04 0
IV.MMO1.HNZ. 2020-03-31T15:56:57.79 0.6 undecidable manual S 7 49.2174 96 0.2 45
IV.NRCA.HHZ. 2020-03-31T15:56:56.16 0.6 undecidable manual S 344 43.2234 97 0.16 46
IV.ARRO.EHN. 2020-03-31T15:56:55.44 1.0 undecidable manual S 289 42.4242 98 -0.35 22
IV.FAGN.HHZ. 2020-03-31T15:56:54.11 1.0 undecidable manual S 129 34.2435 100 0.47 22
IV.MOMA.HNZ. 2020-03-31T15:56:54.11 0.6 undecidable manual P 305 67.9764 94 0.25 43
IV.CSP1.EHZ. 2020-03-31T15:56:54.28 0.3 undecidable manual P 356 70.374 94 0.06 67
IV.TERO.HHZ. 2020-03-31T15:56:53.20 0.3 undecidable manual S 57 33.6441 101 -0.28 69
IV.SRES.HHN. 2020-03-31T15:56:53.65 0.6 undecidable manual P 248 66.0894 94 0.08 45
IV.MTRA.EHZ. 2020-03-31T15:56:53.54 0.6 undecidable manual S 19 34.9428 100 -0.28 46
IV.FDMO.HHZ. 2020-03-31T15:56:53.13 0.6 undecidable manual P 348 65.5899 94 -0.36 43
IV.MF5.EHZ. 2020-03-31T15:56:53.12 0.3 undecidable manual P 16 60.8946 95 0.34 64
IV.CESI.HHE. 2020-03-31T15:56:53.86 0.1 undecidable manual P 335 67.0773 94 0.14 88
IV.CERT.HHZ. 2020-03-31T15:56:52.63 0.6 undecidable manual P 202 60.8946 95 -0.15 44
IV.GIGS.HHZ. 2020-03-31T15:56:51.11 0.3 undecidable manual S 91 25.752 106 -0.33 69
IV.MC2.EHZ. 2020-03-31T15:56:51.12 0.6 undecidable manual P 354 50.5161 96 -0.06 47
IV.VCEL.EHZ. 2020-03-31T15:56:51.16 0.3 undecidable manual P 98 48.2184 96 0.33 66
IV.T0110.HHZ. 2020-03-31T15:56:51.01 0.1 undecidable manual P 121 49.5171 96 -0.02 93
IV.CESX.HHZ. 2020-03-31T15:56:51.83 0.3 undecidable manual P 287 57.2982 95 -0.4 64
IV.FIAM.HHZ. 2020-03-31T15:56:51.07 0.3 undecidable manual S 209 24.1536 108 0.06 74
IV.PTQR.HHZ. 2020-03-31T15:56:51.28 0.6 undecidable manual P 166 49.9167 96 0.2 45
IV.SMA1.EHZ. 2020-03-31T15:56:50.29 0.3 undecidable manual S 18 20.0688 114 0.29 69
IV.NRCA.HHZ. 2020-03-31T15:56:50.02 0.1 undecidable manual P 344 43.2234 97 -0.04 95
IV.LNSS.HHZ. 2020-03-31T15:56:50.96 0.3 undecidable manual S 312 23.8539 108 0 73
IV.MMO1.HNZ. 2020-03-31T15:56:50.95 0.1 undecidable manual P 7 49.2174 96 -0.03 94
IV.ARRO.EHN. 2020-03-31T15:56:49.95 0.1 undecidable manual P 289 42.4242 98 0.01 95
MN.AQU.HHE. 2020-03-31T15:56:49.33 0.3 undecidable manual S 134 16.7721 120 0.12 74
IV.T1299.EHE. 2020-03-31T15:56:49.94 0.3 undecidable manual S 6 19.5693 114 0.07 73
IV.CAMP.HHE. 2020-03-31T15:56:48.73 0.1 undecidable manual S 55 14.9739 124 -0.09 98
IV.TERO.HHZ. 2020-03-31T15:56:48.40 0.1 undecidable manual P 57 33.6441 101 -0.2 93
IV.MTRA.EHZ. 2020-03-31T15:56:48.61 0.3 undecidable manual P 19 34.9428 100 -0.19 70
IV.FAGN.HHZ. 2020-03-31T15:56:48.94 0.3 undecidable manual P 129 34.2435 100 0.24 69
IV.RM33.EHZ. 2020-03-31T15:56:47.00 0.1 undecidable manual S 327 6.5934 151 -0.28 95
IV.GIGS.HHZ. 2020-03-31T15:56:47.16 0.1 undecidable manual P 91 25.752 106 -0.27 93
IV.LNSS.HHZ. 2020-03-31T15:56:47.26 0.3 undecidable manual P 312 23.8539 108 0.11 72
IV.T1299.EHE. 2020-03-31T15:56:46.67 0.1 undecidable manual P 6 19.5693 114 0.15 96
IV.FIAM.HHZ. 2020-03-31T15:56:46.80 0.6 undecidable manual P 209 24.1536 108 -0.38 45
IV.SMA1.EHZ. 2020-03-31T15:56:46.75 0.3 undecidable manual P 18 20.0688 114 0.16 72
MN.AQU.HHE. 2020-03-31T15:56:46.37 0.3 undecidable manual P 134 16.7721 120 0.23 72
IV.RM33.EHZ. 2020-03-31T15:56:45.10 0.1 undecidable manual P 327 6.5934 151 0.07 100
IV.CAMP.HHE. 2020-03-31T15:56:45.95 0.1 undecidable manual P 55 14.9739 124 0.04 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.8 0.000643 0.22 AML other m 2020-03-31T15:56:47.08
IV.RM33.HNE. ML:1.7 0.0005785 0.22 AML other m 2020-03-31T15:56:47.08
IV.RM33.HNN. ML:2.0 0.0010685 0.22 AML other m 2020-03-31T15:56:47.07
IV.RM33.EHN. ML:2.0 0.0010995 0.22 AML other m 2020-03-31T15:56:47.07
IV.FIAM.HHN. ML:1.2 0.00007915 0.32 AML other m 2020-03-31T15:56:51.28
IV.GIGS.HHN. ML:1.0 0.000052900000000000005 1.26 AML other m 2020-03-31T15:56:51.29
IV.FIAM.HHE. ML:1.1 0.00006815 0.18 AML other m 2020-03-31T15:56:51.39
IV.GIGS.HHE. ML:1.0 0.00005715 0.16 AML other m 2020-03-31T15:56:51.75
IV.LNSS.HHN. ML:1.6 0.000194 0.82 AML other m 2020-03-31T15:56:52.57
IV.LNSS.HHE. ML:1.5 0.0001665 0.18 AML other m 2020-03-31T15:56:53.59
IV.MTRA.EHN. ML:1.8 0.0002615 0.42 AML other m 2020-03-31T15:56:53.66
IV.MTRA.EHE. ML:1.7 0.00020600000000000002 1.72 AML other m 2020-03-31T15:56:54.87
IV.TERO.HHE. ML:1.2 0.0000582 0.82 AML other m 2020-03-31T15:56:54.11
IV.TERO.HHN. ML:1.2 0.0000707 1 AML other m 2020-03-31T15:56:56.41
IV.NRCA.HHE. ML:1.7 0.00014000000000000001 0.56 AML other m 2020-03-31T15:56:56.94
IV.NRCA.HHN. ML:1.6 0.00012220000000000002 0.14 AML other m 2020-03-31T15:56:57.00
IV.FAGN.HHN. ML:1.4 0.00010065000000000001 0.56 AML other m 2020-03-31T15:56:57.80
IV.FAGN.HHE. ML:1.5 0.00011385 0.46 AML other m 2020-03-31T15:57:00.96
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