Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 28-08-2022 and time 22:17:26 (Italy) in region 5 km NW Castel Sant'Angelo (RI)

A magnitude ML 1.6 earthquake occured in region: 5 km NW Castel Sant'Angelo (RI), on

  • 28-08-2022 20:17:26 (UTC)
  • 28-08-2022 22:17:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4230, 12.9890 at 8 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
Castel Sant'Angelo RI 5 1308 1308
Cittaducale RI 5 6828 8136
Borgo Velino RI 6 972 9108
Micigliano RI 6 127 9235
Antrodoco RI 8 2588 11823
Cantalice RI 9 2755 14578
Rieti RI 11 47698 62276
Concerviano RI 11 291 62567
Poggio Bustone RI 12 2055 64622
Belmonte in Sabina RI 14 636 65258
Posta RI 14 694 65952
Rivodutri RI 15 1253 67205
Borbona RI 16 617 67822
Petrella Salto RI 16 1197 69019
Leonessa RI 16 2435 71454
Longone Sabino RI 17 597 72051
Rocca Sinibalda RI 17 815 72866
Morro Reatino RI 17 373 73239
Contigliano RI 18 3783 77022
Greccio RI 18 1558 78580
Colli sul Velino RI 19 533 79113
Labro RI 19 374 79487
Cagnano Amiterno AQ 20 1369 80856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Terni (111501 inhabitants)
35 Km W of L'Aquila (69753 inhabitants)
52 Km NE of Guidonia Montecelio (88673 inhabitants)
53 Km NE of Tivoli (56533 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
64 Km W of Teramo (54892 inhabitants)
72 Km NE of Roma (2864731 inhabitants)
73 Km E of Viterbo (67173 inhabitants)
84 Km N of Velletri (53303 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
93 Km NE of Pomezia (62966 inhabitants)
95 Km NE of Fiumicino (78395 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
96 Km N of Aprilia (73446 inhabitants)
97 Km W of Chieti (51815 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 1.6 2022-08-28
20:17:26		 42.4228 12.9893 9 2023-01-31
19:03:46		 Bollettino Sismico Italiano INGV 109892581
Reviewed
Rev100 		ML 1.6 2022-08-28
20:17:26		 42.4188 12.9843 10 2022-08-28
20:24:47		 Sala Sismica INGV-Roma 109072261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-28 20:17:26 ± 0.06
Latitude 42.4228 ± 0.0027
Longitude 12.9893 ± 0.0049
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 109892581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 361
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 250
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80399
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 109072261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-28 20:24:47

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 109892581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-16 17:35:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2022-08-28T20:18:35.75 3.0 undecidable manual Sg 3.18 0
IV.MRB1.HHZ. 2022-08-28T20:18:32.46 3.0 undecidable manual Sg 2.85 0
IV.MCEL.HHZ. 2022-08-28T20:18:12.07 3.0 undecidable manual Pn -4.3 0
IV.ASSB.HHZ. 2022-08-28T20:17:50.08 0.6 undecidable manual S 339 73.8705 50 0.49 42
IV.CSP1.EHZ. 2022-08-28T20:17:50.61 0.6 undecidable manual S 13 76.2681 50 0.38 43
IV.MML1.EHZ. 2022-08-28T20:17:50.71 0.6 undecidable manual S 359 76.6677 50 0.38 43
IV.FDMO.HHZ. 2022-08-28T20:17:48.26 0.6 undecidable manual S 7 68.5758 50 0.09 46
IV.CESI.HHZ. 2022-08-28T20:17:47.35 0.3 undecidable manual S 354 64.8906 50 0.14 69
IV.MOMA.HHZ. 2022-08-28T20:17:44.55 0.3 undecidable manual S 321 54.4011 50 0.16 70
IV.MTCE.HHN. 2022-08-28T20:17:42.73 0.6 undecidable manual S 205 48.8178 50 -0.17 47
IV.ATCC.EHZ. 2022-08-28T20:17:42.92 0.3 undecidable manual P 342 89.244 50 0.58 59
IV.NRCA.HHZ. 2022-08-28T20:17:41.76 0.6 undecidable manual S 13 46.7199 50 -0.58 43
IV.MML1.EHZ. 2022-08-28T20:17:40.40 0.3 undecidable manual P 359 76.6677 50 0 70
IV.ASSB.HHZ. 2022-08-28T20:17:40.03 0.3 undecidable manual P 339 73.8705 50 0.06 69
IV.MF5.EHZ. 2022-08-28T20:17:40.21 3.0 undecidable manual P -0.65 0
IV.CSP1.EHZ. 2022-08-28T20:17:40.23 0.3 undecidable manual P 13 76.2681 50 -0.12 68
IV.CAMP.HHE. 2022-08-28T20:17:39.98 0.6 undecidable manual S 70 36.5412 50 0.35 47
IV.CESX.HHZ. 2022-08-28T20:17:39.85 0.3 undecidable manual S 302 38.8278 50 -0.39 69
IV.FDMO.HHZ. 2022-08-28T20:17:38.89 0.1 undecidable manual P 7 68.5758 50 -0.26 89
IV.CESI.HHZ. 2022-08-28T20:17:38.53 0.1 undecidable manual P 354 64.8906 50 -0.07 94
IV.MC2.EHZ. 2022-08-28T20:17:37.05 3.0 negative manual P -0.48 0
IV.GAVE.EHZ. 2022-08-28T20:17:37.67 0.6 undecidable manual S 345 30.8469 105 -0.27 48
IV.MOMA.HHZ. 2022-08-28T20:17:37.13 0.3 undecidable manual P 321 54.4011 50 0.16 70
IV.TERO.HHZ. 2022-08-28T20:17:36.62 0.3 undecidable manual P 66 54.9006 50 -0.44 66
IV.MTCE.HHN. 2022-08-28T20:17:36.19 0.6 undecidable manual P 205 48.8178 50 0.08 48
IT.MMP1.HGZ. 2022-08-28T20:17:36.77 0.6 undecidable manual S 226 27.5502 107 -0.08 50
IV.ARRO.EHZ. 2022-08-28T20:17:35.89 0.6 undecidable manual S 314 25.1526 109 -0.17 49
IV.NRCA.HHZ. 2022-08-28T20:17:35.43 0.1 negative manual P 13 46.7199 50 -0.36 91
IV.RM33.EHZ. 2022-08-28T20:17:34.57 0.6 undecidable manual S 63 20.7681 112 -0.04 51
IV.CESX.HHZ. 2022-08-28T20:17:34.56 0.3 undecidable manual P 302 38.8278 50 -0.01 75
IV.LNSS.HHZ. 2022-08-28T20:17:34.18 0.6 undecidable manual S 12 20.3685 113 -0.32 48
MN.AQU.HNN. 2022-08-28T20:17:34.11 0.6 undecidable manual P 103 34.9428 50 0.14 49
IV.FIAM.HHZ. 2022-08-28T20:17:34.22 0.6 undecidable manual S 149 20.1687 113 -0.19 50
IV.GAVE.EHZ. 2022-08-28T20:17:33.29 0.6 undecidable manual P 345 30.8469 105 0.04 50
IV.CAMP.HHE. 2022-08-28T20:17:33.89 0.3 undecidable manual P 70 36.5412 50 -0.33 70
IT.MMP1.HGZ. 2022-08-28T20:17:32.71 0.3 undecidable manual P 226 27.5502 107 0.09 75
IV.ARRO.EHZ. 2022-08-28T20:17:32.27 0.1 positive manual P 314 25.1526 109 0.11 100
IV.LNSS.HHZ. 2022-08-28T20:17:31.41 0.1 undecidable manual P 12 20.3685 113 0.15 100
IV.FIAM.HHZ. 2022-08-28T20:17:31.43 0.1 undecidable manual P 149 20.1687 113 0.22 99
IV.RM33.EHZ. 2022-08-28T20:17:31.57 0.1 positive manual P 63 20.7681 112 0.24 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:1.3 0.0001595 0.42 AML other m 2022-08-28T20:17:35.38
IV.RM33.HNN. ML:1.7 0.0004075 0.92 AML other m 2022-08-28T20:17:35.52
IV.RM33.EHN. ML:1.7 0.00039400000000000004 0.92 AML other m 2022-08-28T20:17:35.53
IV.LNSS.HHE. ML:2.0 0.000736 0.14 AML other m 2022-08-28T20:17:35.64
IV.ARRO.EHE. ML:1.7 0.0003255 0.86 AML other m 2022-08-28T20:17:36.50
IV.RM33.HNE. ML:1.8 0.0005075 0.22 AML other m 2022-08-28T20:17:36.33
IV.RM33.EHE. ML:1.8 0.0004995 0.2 AML other m 2022-08-28T20:17:36.44
IV.ARRO.EHN. ML:1.9 0.00047250000000000005 0.12 AML other m 2022-08-28T20:17:36.46
IV.FIAM.HHE. ML:1.3 0.0001565 0.6 AML other m 2022-08-28T20:17:38.07
IV.LNSS.HHN. ML:1.7 0.00040249999999999997 0.26 AML other m 2022-08-28T20:17:38.83
IV.GAVE.EHE. ML:1.7 0.0002495 0.88 AML other m 2022-08-28T20:17:39.91
IV.GAVE.EHN. ML:1.7 0.00021850000000000003 0.22 AML other m 2022-08-28T20:17:40.18
IV.CESX.HHN. ML:1.4 0.00010190000000000001 1.04 AML other m 2022-08-28T20:17:41.74
IV.CESX.HHE. ML:1.3 0.00006475 1.04 AML other m 2022-08-28T20:17:42.76
IV.NRCA.HHN. ML:1.9 0.0002155 0.08 AML other m 2022-08-28T20:17:42.45
IV.NRCA.HHE. ML:2.0 0.0003005 0.14 AML other m 2022-08-28T20:17:42.63
IV.MOMA.HHN. ML:1.5 0.00007744999999999999 1.58 AML other m 2022-08-28T20:17:46.03
IV.MOMA.HHE. ML:1.5 0.00008054999999999999 0.52 AML other m 2022-08-28T20:17:46.14
IV.FDMO.HHE. ML:1.5 0.000058450000000000005 0.18 AML other m 2022-08-28T20:17:48.52
IV.FDMO.HHN. ML:1.5 0.000050100000000000005 0.5 AML other m 2022-08-28T20:17:48.94
IV.CESI.HHN. ML:1.5 0.00005935 1.12 AML other m 2022-08-28T20:17:49.70
IV.CESI.HHE. ML:1.3 0.0000415 0.16 AML other m 2022-08-28T20:17:50.21
IV.CSP1.EHN. ML:1.7 0.00007255 0.22 AML other m 2022-08-28T20:17:51.50
IV.CSP1.EHE. ML:1.8 0.00008779999999999999 0.3 AML other m 2022-08-28T20:17:51.82
IV.MML1.EHE. ML:1.5 0.0000445 0.18 AML other m 2022-08-28T20:17:52.87
IV.MML1.EHN. ML:1.3 0.000031549999999999994 0.14 AML other m 2022-08-28T20:17:53.58
IV.ASSB.HHN. ML:1.5 0.000046649999999999996 0.7 AML other m 2022-08-28T20:17:55.58
IV.ASSB.HHE. ML:1.3 0.0000307 0.78 AML other m 2022-08-28T20:17:57.02
IV.ATCC.EHE. ML:1.4 0.00003015 0.32 AML other m 2022-08-28T20:17:59.53
IV.ATCC.EHN. ML:1.4 0.00003025 1.16 AML other m 2022-08-28T20:18:01.99
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