Earthquake with magnitude of ML 1.1 on date 18-08-2022 and time 05:29:23 (Italy) in region 3 km SW Amatrice (RI)

A magnitude ML 1.1 earthquake occured in region: 3 km SW Amatrice (RI), on

  • 18-08-2022 03:29:23 (UTC)
  • 18-08-2022 05:29:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6140, 13.2640 at 14 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Amatrice RI 3 2657 2657
Cittareale RI 8 482 3139
Accumoli RI 9 667 3806
Montereale AQ 10 2581 6387
Campotosto AQ 11 542 6929
Capitignano AQ 11 665 7594
Borbona RI 16 617 8211
Posta RI 17 694 8905
Cagnano Amiterno AQ 17 1369 10274
Arquata del Tronto AP 18 1178 11452
Barete AQ 18 737 12189
Crognaleto TE 19 1297 13486
Pizzoli AQ 20 4326 17812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
80 Km W of Chieti (51815 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
97 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
Reviewed
Rev100
ML 1.1 2022-08-18
03:29:23
42.6138 13.2638 14 2022-08-18
03:37:53
Sala Sismica INGV-Roma 108664971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-18 03:29:23 ± 0.07
Latitude 42.6138 ± 0.0036
Longitude 13.2638 ± 0.0061
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108664971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 529
Semi-minor axis of confidence ellipse (meter) 181
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) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47934
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 108664971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-18 03:37:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2022-08-18T03:30:26.27 3.0 undecidable manual Sg 4.51 0
IT.MCLF.HNZ. 2022-08-18T03:30:04.49 3.0 undecidable manual S -0.02 0
IV.SACS.HHZ. 2022-08-18T03:29:45.38 3.0 undecidable manual P 3.93 0
IV.ARRO.EHZ. 2022-08-18T03:29:36.50 0.6 undecidable manual S 265 40.8258 95 0.03 47
IV.MC2.EHZ. 2022-08-18T03:29:35.15 0.6 undecidable manual S 350 33.5442 97 0.62 42
IV.MMO1.EHZ. 2022-08-18T03:29:34.15 0.6 undecidable manual S 9 32.0457 97 0.01 48
IV.GIGS.HHZ. 2022-08-18T03:29:33.63 0.3 undecidable manual S 125 30.9468 98 -0.2 70
7F.SIB3.EHZ. 2022-08-18T03:29:33.03 0.6 undecidable manual S 1 28.9488 99 -0.29 46
IV.CSP1.EHZ. 2022-08-18T03:29:32.70 0.3 undecidable manual P 355 53.2023 93 -0.01 69
IV.NRCA.HHZ. 2022-08-18T03:29:32.50 0.6 undecidable manual S 334 27.2505 100 -0.36 45
IV.FDMO.HHZ. 2022-08-18T03:29:32.27 0.3 undecidable manual P 343 49.0176 94 0.2 68
IV.TERO.HHZ. 2022-08-18T03:29:32.58 0.6 undecidable manual S 88 27.75 99 -0.42 45
IV.MF5.EHZ. 2022-08-18T03:29:31.96 0.3 undecidable manual P 21 44.4222 94 0.6 62
IV.FIAM.HHZ. 2022-08-18T03:29:30.89 0.3 undecidable manual P 197 40.2264 95 0.19 70
IV.ARRO.EHZ. 2022-08-18T03:29:30.74 0.3 undecidable manual P 265 40.8258 95 -0.07 69
IV.GAVE.EHE. 2022-08-18T03:29:29.26 0.3 undecidable manual P 286 31.3464 98 -0.09 70
IV.CAMP.HHZ. 2022-08-18T03:29:29.58 0.6 undecidable manual S 126 14.6742 118 -0.08 49
IV.GIGS.HHZ. 2022-08-18T03:29:29.32 0.3 undecidable manual P 125 30.9468 98 0.04 73
IV.MC2.EHZ. 2022-08-18T03:29:29.79 0.3 undecidable manual P 350 33.5442 97 0.1 72
7F.SIB2.EHN. 2022-08-18T03:29:29.26 0.1 undecidable manual P 6 30.9468 98 -0.03 96
IV.MMO1.EHZ. 2022-08-18T03:29:29.50 0.1 undecidable manual P 9 32.0457 97 0.04 97
IV.RM33.EHZ. 2022-08-18T03:29:28.86 0.6 undecidable manual S 199 12.2766 126 -0.26 46
IV.TERO.HHZ. 2022-08-18T03:29:28.77 0.3 undecidable manual P 88 27.75 99 -0.04 73
7F.SIB3.EHZ. 2022-08-18T03:29:28.52 0.3 undecidable manual P 1 28.9488 99 -0.47 66
IV.NRCA.HHZ. 2022-08-18T03:29:28.63 0.3 undecidable manual P 334 27.2505 100 -0.1 71
IV.CAMP.HHZ. 2022-08-18T03:29:27.30 0.3 undecidable manual P 126 14.6742 118 0.42 69
IV.RM33.EHZ. 2022-08-18T03:29:26.65 0.1 undecidable manual P 199 12.2766 126 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.2 0.00015782525 0.0816 AML other m 2022-08-18T03:29:28.93
IV.RM33.EHE. ML:1.5 0.00029000000000000006 0.56 AML other m 2022-08-18T03:29:29.62
IV.CAMP.HHN. ML:0.6 0.00003310385 0.4 AML other m 2022-08-18T03:29:31.35
IV.NRCA.HHE. ML:1.3 0.00010153000000000001 0.1392 AML other m 2022-08-18T03:29:33.08
IV.CAMP.HHE. ML:0.5 0.000025149999999999998 0.42 AML other m 2022-08-18T03:29:33.51
IV.NRCA.HHN. ML:1.2 0.0000733 0.14 AML other m 2022-08-18T03:29:34.15
IV.RM33.HNE. ML:1.5 0.0003245656 0.2192 AML other m 2022-08-18T03:29:29.73
IV.RM33.HNN. ML:1.3 0.00016993765 0.2 AML other m 2022-08-18T03:29:30.27
IV.NRCA.HNE. ML:1.3 0.000095782445 0.1696 AML other m 2022-08-18T03:29:33.35
IV.MMO1.EHE. ML:0.9 0.00003306565 0.16 AML other m 2022-08-18T03:29:34.36
IV.MMO1.EHN. ML:0.8 0.00002982286 0.16 AML other m 2022-08-18T03:29:34.38
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download