Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 18-10-2022 and time 23:28:40 (UTC) in region 4 km NW Micigliano (RI)

A magnitude ML 1.1 earthquake occured in region: 4 km NW Micigliano (RI), on

  • 18-10-2022 23:28:40 (UTC)
  • 19-10-2022 01:28:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4720, 13.0190 at 11 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.

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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
Micigliano RI 4 127 127
Antrodoco RI 8 2588 2715
Borgo Velino RI 8 972 3687
Castel Sant'Angelo RI 9 1308 4995
Posta RI 9 694 5689
Cantalice RI 9 2755 8444
Borbona RI 10 617 9061
Leonessa RI 11 2435 11496
Cittaducale RI 11 6828 18324
Poggio Bustone RI 11 2055 20379
Rivodutri RI 14 1253 21632
Rieti RI 15 47698 69330
Morro Reatino RI 16 373 69703
Concerviano RI 17 291 69994
Cagnano Amiterno AQ 17 1369 71363
Labro RI 19 374 71737
Polino TR 19 233 71970
Montereale AQ 20 2581 74551
Colli sul Velino RI 20 533 75084
Belmonte in Sabina RI 20 636 75720
Cittareale RI 20 482 76202
Petrella Salto RI 20 1197 77399

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Terni (111501 inhabitants)
34 Km W of L'Aquila (69753 inhabitants)
58 Km NE of Guidonia Montecelio (88673 inhabitants)
59 Km NE of Tivoli (56533 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
60 Km W of Teramo (54892 inhabitants)
75 Km E of Viterbo (67173 inhabitants)
78 Km NE of Roma (2864731 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
90 Km N of Velletri (53303 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
95 Km W of Chieti (51815 inhabitants)
98 Km W of Pescara (121014 inhabitants)
99 Km NE of Pomezia (62966 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 2022-10-18
23:28:40		 42.4722 13.0193 11 2022-10-18
23:34:45		 Sala Sismica INGV-Roma 110951801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-18 23:28:40 ± 0.05
Latitude 42.4722 ± 0.0018
Longitude 13.0193 ± 0.0037
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 110951801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 350
Semi-minor axis of confidence ellipse (meter) 200
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48294
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 110951801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-10-18 23:34:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2022-10-18T23:29:00.64 3.0 undecidable manual S -0.37 0
IV.MMO1.EHZ. 2022-10-18T23:28:57.60 0.6 undecidable manual S 28 53.6019 90 0.13 46
IV.MC2.EHZ. 2022-10-18T23:28:55.45 3.0 undecidable manual S -2.02 0
IV.CESX.HHZ. 2022-10-18T23:28:53.86 0.3 undecidable manual S 293 38.4282 90 0.43 69
IV.NRCA.HHZ. 2022-10-18T23:28:53.97 0.3 undecidable manual S 11 40.8258 90 -0.09 72
IV.ASSB.HHZ. 2022-10-18T23:28:52.93 3.0 negative manual P -0.04 0
IV.FDMO.HHZ. 2022-10-18T23:28:51.95 3.0 positive manual P 0.18 0
IV.SMA1.EHZ. 2022-10-18T23:28:51.61 0.3 undecidable manual S 56 31.2465 90 0.11 72
IV.MMO1.EHZ. 2022-10-18T23:28:50.45 0.1 undecidable manual P 28 53.6019 90 0.07 94
IV.GAVE.EHZ. 2022-10-18T23:28:50.21 0.3 undecidable manual S 337 26.4513 90 -0.01 74
IV.ARRO.EHZ. 2022-10-18T23:28:49.54 0.3 undecidable manual S 300 23.8539 90 0 74
IV.CESI.HHZ. 2022-10-18T23:28:49.37 3.0 positive manual P -1.94 0
IV.FIAM.HHZ. 2022-10-18T23:28:49.28 0.3 undecidable manual S 160 24.0537 90 -0.29 71
IV.NRCA.HHZ. 2022-10-18T23:28:48.14 0.1 undecidable manual P 11 40.8258 90 -0.27 92
IV.CESX.HHZ. 2022-10-18T23:28:48.16 0.1 undecidable manual P 293 38.4282 90 0.11 98
IT.MMP1.HGE. 2022-10-18T23:28:47.56 0.6 undecidable manual P 222 33.2445 90 0.32 47
IV.RM33.EHZ. 2022-10-18T23:28:47.62 0.3 undecidable manual S 76 16.4724 90 0.06 74
IV.SMA1.EHZ. 2022-10-18T23:28:46.98 0.1 undecidable manual P 56 31.2465 90 0.04 98
IV.GAVE.EHZ. 2022-10-18T23:28:46.13 0.1 undecidable manual P 337 26.4513 90 -0.07 98
IV.FIAM.HHZ. 2022-10-18T23:28:45.68 0.1 positive manual P 160 24.0537 90 -0.14 97
IV.ARRO.EHZ. 2022-10-18T23:28:45.85 0.1 positive manual P 300 23.8539 90 0.05 100
IV.RM33.EHZ. 2022-10-18T23:28:44.77 0.1 negative manual P 76 16.4724 90 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.3 0.00016399999999999997 0.3 AML other m 2022-10-18T23:28:47.98
IV.RM33.EHN. ML:1.1 0.0000996 1.08 AML other m 2022-10-18T23:28:48.78
IV.FIAM.HHN. ML:1.0 0.00006620000000000001 0.28 AML other m 2022-10-18T23:28:49.39
IV.ARRO.EHE. ML:1.1 0.00007435 0.2 AML other m 2022-10-18T23:28:49.75
IV.ARRO.EHN. ML:1.2 0.0000847 0.1 AML other m 2022-10-18T23:28:50.06
IV.FIAM.HHE. ML:0.9 0.000047600000000000005 1.44 AML other m 2022-10-18T23:28:50.99
IV.GAVE.EHN. ML:1.1 0.00006989999999999999 1.24 AML other m 2022-10-18T23:28:51.78
IV.GAVE.EHE. ML:1.2 0.0000797 0.82 AML other m 2022-10-18T23:28:51.43
IV.SMA1.EHN. ML:1.0 0.000046899999999999995 1.56 AML other m 2022-10-18T23:28:52.83
IV.SMA1.EHE. ML:1.4 0.00012605 0.22 AML other m 2022-10-18T23:28:52.24
IV.NRCA.HHE. ML:1.5 0.00010475000000000001 0.66 AML other m 2022-10-18T23:28:54.94
IV.NRCA.HHN. ML:1.2 0.0000543 0.1 AML other m 2022-10-18T23:28:56.72
IV.MMO1.EHE. ML:1.0 0.0000247 0.58 AML other m 2022-10-18T23:28:58.39
IV.MMO1.EHN. ML:0.9 0.0000187 1 AML other m 2022-10-18T23:29:00.47
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