Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 06-02-2021 and time 02:58:31 (Italy) in region 1 km E Roccacasale (AQ)

A magnitude ML 1.3 earthquake occured in region: 1 km E Roccacasale (AQ), on

  • 06-02-2021 01:58:31 (UTC)
  • 06-02-2021 02:58:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.1220, 13.9070 at 22 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
Roccacasale AQ 1 693 693
Pratola Peligna AQ 4 7577 8270
Corfinio AQ 5 1051 9321
Vittorito AQ 7 873 10194
Salle PE 8 308 10502
Popoli PE 8 5172 15674
Raiano AQ 8 2815 18489
Sulmona AQ 8 24557 43046
Caramanico Terme PE 9 1929 44975
Prezza AQ 9 945 45920
Sant'Eufemia a Maiella PE 10 278 46198
Pacentro AQ 11 1174 47372
Tocco da Casauria PE 11 2688 50060
Bolognano PE 12 1108 51168
Bugnara AQ 12 1125 52293
Bussi sul Tirino PE 12 2518 54811
Goriano Sicoli AQ 12 569 55380
Introdacqua AQ 13 2126 57506
Castiglione a Casauria PE 13 831 58337
San Benedetto in Perillis AQ 13 113 58450
Castel di Ieri AQ 14 303 58753
Torre de' Passeri PE 14 3147 61900
San Valentino in Abruzzo Citeriore PE 14 1922 63822
Roccamorice PE 14 939 64761
Abbateggio PE 14 400 65161
Molina Aterno AQ 14 386 65547
Cocullo AQ 15 230 65777
Castelvecchio Subequo AQ 15 982 66759
Pescosansonesco PE 15 517 67276
Collepietro AQ 15 237 67513
Cansano AQ 16 274 67787
Anversa degli Abruzzi AQ 16 341 68128
Lettomanoppello PE 17 2975 71103
Acciano AQ 17 327 71430
Campo di Giove AQ 17 803 72233
Gagliano Aterno AQ 17 254 72487
Pettorano sul Gizio AQ 17 1376 73863
Pietranico PE 17 484 74347
Corvara PE 17 256 74603
Scafa PE 18 3759 78362
Turrivalignani PE 19 857 79219
Secinaro AQ 19 359 79578
Navelli AQ 19 554 80132
Capestrano AQ 20 884 81016
Alanno PE 20 3487 84503

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SW of Chieti (51815 inhabitants)
46 Km SW of Pescara (121014 inhabitants)
48 Km SW of Montesilvano (53738 inhabitants)
49 Km SE of L'Aquila (69753 inhabitants)
62 Km S of Teramo (54892 inhabitants)
93 Km E of Tivoli (56533 inhabitants)
98 Km E of Guidonia Montecelio (88673 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 1.3 2021-02-06
01:58:31		 42.122 13.9072 22 2021-07-12
16:55:00		 Bollettino Sismico Italiano INGV 87604751
Reviewed
Rev100 		ML 1.3 2021-02-06
01:58:31		 42.1067 13.9173 23 2021-02-06
02:09:27		 Sala Sismica INGV-Roma 86868561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-06 01:58:31 ± 0.1
Latitude 42.1220 ± 0.0036
Longitude 13.9072 ± 0.0073
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87604751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 484
Semi-minor axis of confidence ellipse (meter) 336
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.45686
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 87604751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-07 10:02:28

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 86868561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-06 02:09:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RNI2.HNZ. 2021-02-06T01:58:48.44 0.6 undecidable manual S 156 50.7159 106 0.54 40
IV.POFI.HNZ. 2021-02-06T01:58:47.32 0.6 undecidable manual S 200 47.7189 107 0.18 45
IV.GIGS.HHZ. 2021-02-06T01:58:46.93 0.6 undecidable manual S 323 45.8208 108 0.26 46
IV.VVLD.HHZ. 2021-02-06T01:58:44.29 0.3 undecidable manual S 220 36.5412 114 -0.05 72
IT.OPI.HGZ. 2021-02-06T01:58:44.73 0.6 undecidable manual S 189 38.8278 112 -0.19 47
IV.VCEL.EHN. 2021-02-06T01:58:43.14 0.6 undecidable manual S 350 30.747 118 0.19 48
IV.FAGN.HHZ. 2021-02-06T01:58:42.96 0.6 undecidable manual S 301 30.9468 118 -0.05 47
IV.LPEL.HHZ. 2021-02-06T01:58:41.25 0.6 undecidable manual S 110 24.1536 126 -0.22 47
IV.RNI2.HNZ. 2021-02-06T01:58:41.41 0.6 undecidable manual P 156 50.7159 106 0.44 42
IV.GIGS.HHZ. 2021-02-06T01:58:40.79 1.0 undecidable manual P 323 45.8208 108 0.53 21
IV.POFI.HNZ. 2021-02-06T01:58:40.35 0.3 undecidable manual P 200 47.7189 107 -0.18 69
IT.OPI.HGZ. 2021-02-06T01:58:39.03 0.6 undecidable manual P 189 38.8278 112 -0.22 46
IV.INTR.HHZ. 2021-02-06T01:58:39.19 0.3 undecidable manual S 181 12.2766 147 -0.06 75
IV.PTQR.HHZ. 2021-02-06T01:58:39.33 1.0 undecidable manual P 255 43.1235 109 -0.54 21
IV.T0110.HHZ. 2021-02-06T01:58:39.80 0.3 undecidable manual S 318 16.0728 139 -0.06 73
IT.SULC.HNZ. 2021-02-06T01:58:38.53 0.6 undecidable manual S 179 5.994 163 -0.01 51
IV.VVLD.HHZ. 2021-02-06T01:58:38.78 0.1 undecidable manual P 220 36.5412 114 -0.13 94
IT.SULP.HGZ. 2021-02-06T01:58:38.40 0.3 undecidable manual S 158 4.3956 167 -0.03 76
IT.SULA.HNZ. 2021-02-06T01:58:38.74 0.3 undecidable manual S 172 5.4945 164 0.24 72
IV.VCEL.EHN. 2021-02-06T01:58:38.10 0.6 undecidable manual P 350 30.747 118 -0.01 48
IV.FAGN.HHZ. 2021-02-06T01:58:38.20 0.6 undecidable manual P 301 30.9468 118 0.05 48
IV.LPEL.HHZ. 2021-02-06T01:58:37.07 0.3 undecidable manual P 110 24.1536 126 -0.19 71
IV.INTR.HHZ. 2021-02-06T01:58:36.02 0.1 positive manual P 181 12.2766 147 0.05 99
IV.T0110.HHZ. 2021-02-06T01:58:36.32 0.3 negative manual P 318 16.0728 139 -0.01 74
IT.SULC.HNZ. 2021-02-06T01:58:35.44 0.6 undecidable manual P 179 5.994 163 -0.12 49
IT.SULP.HGZ. 2021-02-06T01:58:35.44 0.1 undecidable manual P 158 4.3956 167 -0.06 100
IT.SULA.HNZ. 2021-02-06T01:58:35.55 0.3 undecidable manual P 172 5.4945 164 0.01 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.INTR.HNE. ML:1.4 0.00018191180000000002 0.36 AML other m 2021-02-06T01:58:39.35
IV.INTR.HHN. ML:1.6 0.00022649999999999998 0.38 AML other m 2021-02-06T01:58:39.46
IV.INTR.HHE. ML:1.5 0.0001945 1.58 AML other m 2021-02-06T01:58:39.11
IV.T0110.HHE. ML:1.4 0.00014629947500000002 0.4816 AML other m 2021-02-06T01:58:40.24
IV.T0110.HHN. ML:1.4 0.000154 0.3 AML other m 2021-02-06T01:58:40.20
IV.INTR.HNN. ML:1.6 0.00022333285 1.0496 AML other m 2021-02-06T01:58:40.18
IV.LPEL.HNE. ML:1.4 0.00010850845500000001 0.9392 AML other m 2021-02-06T01:58:40.87
IV.LPEL.HHE. ML:0.9 0.000038660675 0.6 AML other m 2021-02-06T01:58:41.75
IV.LPEL.HHN. ML:0.9 0.00004228534 0.52 AML other m 2021-02-06T01:58:41.52
IV.LPEL.HNN. ML:1.5 0.00013484079 1.4704 AML other m 2021-02-06T01:58:41.05
IV.VVLD.HHN. ML:1.0 0.000028846644999999996 0.2608 AML other m 2021-02-06T01:58:44.75
IV.VVLD.HHE. ML:1.1 0.0000432 0.58 AML other m 2021-02-06T01:58:45.88
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