Earthquake with magnitude of ML 1.0 on date 10-08-2021 and time 04:53:57 (UTC) in region 3 km W Pacentro (AQ)

A magnitude ML 1.0 earthquake occured in region: 3 km W Pacentro (AQ), on

  • 10-08-2021 04:53:57 (UTC)
  • 10-08-2021 06:53:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.0660, 13.9590 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pacentro AQ 3 1174 1174
Sulmona AQ 3 24557 25731
Pratola Peligna AQ 8 7577 33308
Introdacqua AQ 8 2126 35434
Cansano AQ 8 274 35708
Roccacasale AQ 9 693 36401
Sant'Eufemia a Maiella PE 9 278 36679
Campo di Giove AQ 9 803 37482
Bugnara AQ 9 1125 38607
Pettorano sul Gizio AQ 10 1376 39983
Prezza AQ 10 945 40928
Caramanico Terme PE 11 1929 42857
Corfinio AQ 12 1051 43908
Salle PE 13 308 44216
Raiano AQ 13 2815 47031
Vittorito AQ 14 873 47904
Rocca Pia AQ 15 178 48082
Anversa degli Abruzzi AQ 15 341 48423
Goriano Sicoli AQ 15 569 48992
Cocullo AQ 16 230 49222
Popoli PE 16 5172 54394
Bolognano PE 17 1108 55502
Tocco da Casauria PE 17 2688 58190
Palena CH 17 1392 59582
Villalago AQ 18 568 60150
Roccamorice PE 18 939 61089
Lettopalena CH 18 358 61447
Taranta Peligna CH 18 376 61823
Abbateggio PE 18 400 62223
Castel di Ieri AQ 19 303 62526
San Valentino in Abruzzo Citeriore PE 19 1922 64448
Scanno AQ 19 1847 66295
Lama dei Peligni CH 19 1271 67566
Bussi sul Tirino PE 20 2518 70084
Castiglione a Casauria PE 20 831 70915

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Chieti (51815 inhabitants)
49 Km SW of Pescara (121014 inhabitants)
52 Km SW of Montesilvano (53738 inhabitants)
56 Km SE of L'Aquila (69753 inhabitants)
69 Km SE of Teramo (54892 inhabitants)
96 Km E 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 1.0 2021-08-10
04:53:57
42.0655 13.9588 13 2021-12-29
11:12:52
Bollettino Sismico Italiano INGV 97514671
Reviewed
Rev100
ML 1.0 2021-08-10
04:53:57
42.0688 13.9615 13 2021-08-10
05:05:08
Sala Sismica INGV-Roma 93908801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-10 04:53:57 ± 0.04
Latitude 42.0655 ± 0.0018
Longitude 13.9588 ± 0.0036
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97514671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 262
Semi-minor axis of confidence ellipse (meter) 117
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47664
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 93908801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-10 05:05:08

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 97514671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-17 09:32:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VENL.EHZ. 2021-08-10T04:55:35.99 3.0 undecidable manual Sn 1.28 0
GU.PZZ.HHZ. 2021-08-10T04:55:31.10 3.0 undecidable manual Pg 23.01 0
GU.GRAM.HHZ. 2021-08-10T04:55:28.35 3.0 undecidable manual Sn -4.66 0
GU.GSCL.HHZ. 2021-08-10T04:55:27.19 3.0 undecidable manual Sn 2.58 0
IV.LADO.EHZ. 2021-08-10T04:55:25.58 3.0 undecidable manual Sg 13.5 0
IV.LMD.HHZ. 2021-08-10T04:55:24.41 3.0 undecidable manual Sg 16.01 0
GU.MGRO.HHZ. 2021-08-10T04:55:14.26 3.0 undecidable manual Pg 15.28 0
CR.STON.BHZ. 2021-08-10T04:55:14.44 3.0 undecidable manual Sn -0.45 0
GU.IMI.HHZ. 2021-08-10T04:55:05.54 3.0 negative manual Pn 8.18 0
IV.ARVD.HHZ. 2021-08-10T04:54:54.03 3.0 undecidable manual Sg 6.46 0
AC.PUK.HHZ. 2021-08-10T04:54:54.95 3.0 negative manual Pn 1.21 0
IV.MTGR.HHZ. 2021-08-10T04:54:48.04 3.0 positive manual Pg 10.82 0
GU.GSCL.HHZ. 2021-08-10T04:54:42.59 3.0 positive manual Pn 1.72 0
IV.EFIU.HHZ. 2021-08-10T04:54:41.17 3.0 undecidable manual Pn 0.86 0
GU.POPM.HHZ. 2021-08-10T04:54:39.32 3.0 undecidable manual Pn 2.72 0
IV.SENA.HHZ. 2021-08-10T04:54:37.95 3.0 undecidable manual Pn 3.29 0
IX.SCL3.EHZ.02 2021-08-10T04:54:32.01 3.0 undecidable manual Sn 0.74 0
IV.ARVD.HHZ. 2021-08-10T04:54:19.35 3.0 undecidable manual Pn -0.71 0
IV.PE3.EHZ. 2021-08-10T04:54:19.13 3.0 positive manual Pn -4.75 0
IV.MURB.HHZ. 2021-08-10T04:54:17.62 3.0 negative manual Pn -0.82 0
OT.OT12.EHZ. 2021-08-10T04:54:15.64 3.0 negative manual Pg 2.46 0
IV.POFI.HHE. 2021-08-10T04:54:11.98 0.6 undecidable manual S 208 43.623 94 -0.04 48
IV.SGRT.HHZ. 2021-08-10T04:54:10.44 3.0 positive manual Pn -1.51 0
IV.VCEL.EHZ. 2021-08-10T04:54:10.53 0.6 undecidable manual S 345 37.7289 95 0.08 48
IV.PZUN.HHZ. 2021-08-10T04:54:10.69 3.0 positive manual Pn -3.12 0
IV.MIDA.HNZ. 2021-08-10T04:54:07.50 0.3 undecidable manual P 152 52.9026 93 0.03 70
IV.T0110.HHZ. 2021-08-10T04:54:06.74 0.6 undecidable manual S 321 23.5542 102 0.04 49
IV.POFI.HHE. 2021-08-10T04:54:06.06 1.0 undecidable manual P 208 43.623 94 0.02 24
IV.LPEL.HHZ. 2021-08-10T04:54:05.29 0.6 undecidable manual S 96 18.5703 108 -0.12 49
IV.VCEL.EHZ. 2021-08-10T04:54:05.10 0.3 undecidable manual P 345 37.7289 95 -0.04 72
IT.SULA.HNZ. 2021-08-10T04:54:02.66 0.6 undecidable manual S 284 3.5964 161 0.18 50
IV.T0110.HHZ. 2021-08-10T04:54:02.91 0.1 undecidable manual P 321 23.5542 102 -0.06 98
IV.LPEL.HHZ. 2021-08-10T04:54:02.31 0.1 undecidable manual P 96 18.5703 108 0.08 99
IT.SULP.HGE. 2021-08-10T04:54:02.40 0.6 undecidable manual S 310 3.3966 162 -0.06 51
IV.VTIR.HHZ. 2021-08-10T04:54:02.83 3.0 undecidable manual P 1 0
IV.INTR.HHZ. 2021-08-10T04:54:02.87 0.6 undecidable manual S 217 7.4814 143 -0.1 50
IT.SULP.HGE. 2021-08-10T04:54:00.50 0.3 undecidable manual P 310 3.3966 162 -0.03 77
IV.INTR.HHZ. 2021-08-10T04:54:00.93 0.1 positive manual P 217 7.4814 143 0.11 100
IT.SULA.HNZ. 2021-08-10T04:54:00.41 0.3 undecidable manual P 284 3.5964 161 -0.13 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.INTR.HHN. ML:0.6 0.000044899999999999994 1.08 AML other m 2021-08-10T04:54:03.71
IV.INTR.HHE. ML:0.5 0.000037000000000000005 0.36 AML other m 2021-08-10T04:54:03.85
IV.LPEL.HNN. ML:1.3 0.000144203205 0.2112 AML other m 2021-08-10T04:54:05.46
IV.LPEL.HHN. ML:1.3 0.000131 0.12 AML other m 2021-08-10T04:54:05.66
IV.LPEL.HHE. ML:1.3 0.000152 0.2 AML other m 2021-08-10T04:54:05.76
IV.LPEL.HNE. ML:1.3 0.00015539069999999998 0.2208 AML other m 2021-08-10T04:54:05.87
IV.INTR.HNE. ML:1.1 0.00014891085 0.5792 AML other m 2021-08-10T04:54:07.67
IV.T0110.HHE. ML:0.8 0.00004185 0.32 AML other m 2021-08-10T04:54:08.44
IV.T0110.HHN. ML:0.8 0.00003255 1.64 AML other m 2021-08-10T04:54:09.92
IV.INTR.HNN. ML:1.0 0.00010344168499999999 0.6112 AML other m 2021-08-10T04:54:13.59
IV.VCEL.EHE. ML:0.8 0.000026117215 0.3424 AML other m 2021-08-10T04:54:15.58
IV.VCEL.EHN. ML:0.9 0.0000286428 1.3184 AML other m 2021-08-10T04:54:21.19
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