Earthquake with magnitude of ML 1.0 on date 30-12-2021 and time 23:53:39 (UTC) in region 6 km NE Pescasseroli (AQ)

A magnitude ML 1.0 earthquake occured in region: 6 km NE Pescasseroli (AQ), on

  • 30-12-2021 23:53:39 (UTC)
  • 31-12-2021 00:53:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.8510, 13.8420 at 26 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
Pescasseroli AQ 6 2203 2203
Scanno AQ 7 1847 4050
Opi AQ 8 420 4470
Villalago AQ 10 568 5038
Bisegna AQ 11 223 5261
Villetta Barrea AQ 11 653 5914
Civitella Alfedena AQ 13 296 6210
Rocca Pia AQ 15 178 6388
Lecce nei Marsi AQ 16 1702 8090
San Donato Val di Comino FR 16 2107 10197
Barrea AQ 16 726 10923
Anversa degli Abruzzi AQ 16 341 11264
Pettorano sul Gizio AQ 17 1376 12640
Gioia dei Marsi AQ 17 1989 14629
Villavallelonga AQ 18 919 15548
Introdacqua AQ 18 2126 17674
Campoli Appennino FR 18 1725 19399
Rivisondoli AQ 19 700 20099
Ortona dei Marsi AQ 19 542 20641
Pescosolido FR 19 1555 22196
Pescocostanzo AQ 19 1128 23324
Bugnara AQ 19 1125 24449
Roccaraso AQ 20 1627 26076
Alvito FR 20 2713 28789
Ortucchio AQ 20 1860 30649
Settefrati FR 20 728 31377

Municipalities with at least 50000 inhabitants

An earthquake occurred to
62 Km SW of Chieti (51815 inhabitants)
67 Km SE of L'Aquila (69753 inhabitants)
75 Km SW of Pescara (121014 inhabitants)
78 Km SW of Montesilvano (53738 inhabitants)
87 Km E of Tivoli (56533 inhabitants)
89 Km E of Latina (125985 inhabitants)
90 Km E of Velletri (53303 inhabitants)
91 Km S of Teramo (54892 inhabitants)
94 Km E of Guidonia Montecelio (88673 inhabitants)
96 Km NW of Caserta (76326 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 2021-12-30
23:53:39
41.8513 13.8418 26 2022-03-30
13:04:25
Bollettino Sismico Italiano INGV 99257611
Reviewed
Rev100
ML 1.0 2021-12-30
23:53:39
41.8443 13.8415 26 2021-12-31
00:06:15
Sala Sismica INGV-Roma 99173391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-30 23:53:39 ± 0.18
Latitude 41.8513 ± 0.0063
Longitude 13.8418 ± 0.0109
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99257611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 784
Semi-minor axis of confidence ellipse (meter) 603
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.38131
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 99173391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-31 00:06:15

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 99257611
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-03 12:02:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MIDA.HHZ. 2021-12-30T23:53:53.47 0.3 undecidable manual S 124 41.2254 116 0.05 72
IV.T0110.HHN. 2021-12-30T23:53:53.97 0.3 undecidable manual S 353 42.3243 115 0.31 69
IV.CERA.HHZ. 2021-12-30T23:53:51.46 0.3 undecidable manual S 152 31.6461 123 0.28 71
IV.RNI2.HNE. 2021-12-30T23:53:51.73 0.6 undecidable manual S 122 30.4473 124 0.81 39
IV.VVLD.HHZ. 2021-12-30T23:53:48.58 0.6 undecidable manual S 276 18.1707 141 0.1 51
IV.POFI.HNN. 2021-12-30T23:53:48.74 0.3 undecidable manual S 216 18.3705 140 0.24 74
IV.T0110.HHN. 2021-12-30T23:53:47.67 0.3 undecidable manual P 353 42.3243 115 0.2 70
IV.LRP.EHZ. 2021-12-30T23:53:46.02 0.1 undecidable manual P 223 30.9468 124 0.07 99
IV.LPEL.HHE. 2021-12-30T23:53:46.17 0.3 undecidable manual P 52 35.5422 120 -0.38 70
IT.OPI.HGZ. 2021-12-30T23:53:46.79 0.6 undecidable manual S 187 8.3805 160 -0.38 48
IV.MIDA.HHZ. 2021-12-30T23:53:46.84 0.1 undecidable manual P 124 41.2254 116 -0.49 90
IV.CERA.HHZ. 2021-12-30T23:53:45.93 0.1 undecidable manual P 152 31.6461 123 -0.12 99
IV.RNI2.HNE. 2021-12-30T23:53:45.97 0.1 undecidable manual P 122 30.4473 124 0.08 98
IV.POFI.HNN. 2021-12-30T23:53:44.53 0.3 undecidable manual P 216 18.3705 140 0.03 77
IV.VVLD.HHZ. 2021-12-30T23:53:44.38 0.1 undecidable manual P 276 18.1707 141 -0.1 100
IT.OPI.HGZ. 2021-12-30T23:53:43.57 0.3 undecidable manual P 187 8.3805 160 -0.16 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:0.9 0.000035372215 0.2944 AML other m 2021-12-30T23:53:48.76
IV.VVLD.HHN. ML:0.9 0.00003384579 0.1408 AML other m 2021-12-30T23:53:49.44
IV.CERA.HHE. ML:1.2 0.00005318159999999999 1.4368 AML other m 2021-12-30T23:53:51.00
IV.CERA.HHN. ML:1.1 0.000044683745 0.512 AML other m 2021-12-30T23:53:52.59
IV.MIDA.HNE. ML:1.2 0.00004741046 0.8512 AML other m 2021-12-30T23:53:53.23
IV.MIDA.HHE. ML:1.0 0.00002489775 0.32 AML other m 2021-12-30T23:53:54.62
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