Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 20-01-2022 and time 16:40:05 (UTC) in region 1 km E Micigliano (RI)

A magnitude ML 1.4 earthquake occured in region: 1 km E Micigliano (RI), on

  • 20-01-2022 16:40:05 (UTC)
  • 20-01-2022 17:40:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4540, 13.0620 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 1 127 127
Antrodoco RI 4 2588 2715
Borgo Velino RI 5 972 3687
Castel Sant'Angelo RI 7 1308 4995
Posta RI 8 694 5689
Borbona RI 9 617 6306
Cittaducale RI 12 6828 13134
Cantalice RI 13 2755 15889
Cagnano Amiterno AQ 13 1369 17258
Leonessa RI 14 2435 19693
Poggio Bustone RI 15 2055 21748
Concerviano RI 16 291 22039
Montereale AQ 17 2581 24620
Rieti RI 17 47698 72318
Petrella Salto RI 18 1197 73515
Barete AQ 18 737 74252
Rivodutri RI 18 1253 75505
Scoppito AQ 19 3727 79232
Pizzoli AQ 19 4326 83558
Cittareale RI 20 482 84040

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of L'Aquila (69753 inhabitants)
36 Km E of Terni (111501 inhabitants)
57 Km NE of Guidonia Montecelio (88673 inhabitants)
57 Km W of Teramo (54892 inhabitants)
59 Km NE of Tivoli (56533 inhabitants)
63 Km SE of Foligno (57155 inhabitants)
78 Km NE of Roma (2864731 inhabitants)
79 Km E of Viterbo (67173 inhabitants)
88 Km N of Velletri (53303 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
92 Km W of Chieti (51815 inhabitants)
95 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 1.4 2022-01-20
16:40:05		 42.4543 13.062 11 2022-01-20
16:44:39		 Sala Sismica INGV-Roma 99987181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-20 16:40:05 ± 0.12
Latitude 42.4543 ± 0.0054
Longitude 13.0620 ± 0.0098
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 99987181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 840
Semi-minor axis of confidence ellipse (meter) 525
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 65
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46585
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 99987181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-20 16:44:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2022-01-20T16:40:24.79 0.6 undecidable manual S 0.39 0.76
IV.SMA1.EHZ. 2022-01-20T16:40:16.09 0.6 undecidable manual S 49 29.6481 50 0.1 48
IV.GAVE.EHZ. 2022-01-20T16:40:16.30 0.6 undecidable manual S 333 29.748 50 0.3 46
IV.MC2.EHZ. 2022-01-20T16:40:15.13 1.0 positive manual P 12 51.7038 50 0.15 23
IV.NRCA.HHZ. 2022-01-20T16:40:13.47 0.1 negative manual P 6 42.3243 50 -0.05 95
IV.FIAM.HHZ. 2022-01-20T16:40:13.73 0.6 undecidable manual S 168 21.1677 50 0.02 50
IV.LNSS.HHZ. 2022-01-20T16:40:12.45 0.6 undecidable manual S 354 16.5723 123 0.03 50
IV.GAVE.EHZ. 2022-01-20T16:40:11.04 0.3 undecidable manual P 333 29.748 50 -0.55 65
IV.RM33.EHZ. 2022-01-20T16:40:11.42 0.6 undecidable manual S 64 13.875 128 -0.24 48
IV.SMA1.EHZ. 2022-01-20T16:40:11.60 0.3 positive manual P 49 29.6481 50 0.02 74
IV.FIAM.HHZ. 2022-01-20T16:40:10.38 0.6 undecidable manual P 168 21.1677 50 0.11 49
IV.RM33.EHZ. 2022-01-20T16:40:09.15 0.1 positive manual P 64 13.875 128 0.07 100
IV.LNSS.HHZ. 2022-01-20T16:40:09.74 0.3 positive manual P 354 16.5723 123 0.22 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.6 0.0003625959 0.1792 AML other m 2022-01-20T16:40:12.13
IV.RM33.EHN. ML:1.2 0.00016995785000000003 0.2432 AML other m 2022-01-20T16:40:12.33
IV.LNSS.HHE. ML:1.4 0.00018863055 0.1152 AML other m 2022-01-20T16:40:13.07
IV.LNSS.HHN. ML:1.4 0.00023234195000000003 0.1152 AML other m 2022-01-20T16:40:12.98
IV.SMA1.EHN. ML:1.1 0.00006634999999999999 0.92 AML other m 2022-01-20T16:40:16.22
IV.SMA1.EHE. ML:1.3 0.00010085 0.24 AML other m 2022-01-20T16:40:16.40
IV.NRCA.HHN. ML:1.3 0.00006110000000000001 0.12 AML other m 2022-01-20T16:40:19.55
IV.NRCA.HHE. ML:1.4 0.00009140000000000001 0.12 AML other m 2022-01-20T16:40:20.12
IV.RM33.HNE. ML:1.6 0.00034827555 0.1792 AML other m 2022-01-20T16:40:12.12
IV.RM33.HNN. ML:1.3 0.00018309925 0.2432 AML other m 2022-01-20T16:40:12.31
IV.LNSS.HNE. ML:1.3 0.000173222285 0.1152 AML other m 2022-01-20T16:40:13.08
IV.LNSS.HNN. ML:1.4 0.0002420444 0.128 AML other m 2022-01-20T16:40:13.05
IV.FIAM.HHE. ML:0.5 0.000022266294999999997 0.2432 AML other m 2022-01-20T16:40:14.00
IV.FIAM.HHN. ML:0.6 0.000028386994999999997 0.3328 AML other m 2022-01-20T16:40:17.29
IV.FIAM.HNE. ML:2.5 0.0021693443000000002 1.4592 AML other m 2022-01-20T16:40:21.89
IV.GAVE.EHE. ML:0.9 0.000041499364999999995 0.1408 AML other m 2022-01-20T16:40:19.16
IV.GAVE.EHN. ML:1.0 0.000047299259999999993 0.2048 AML other m 2022-01-20T16:40:16.51
IV.GAVE.HNE. ML:1.6 0.00018071474 1.0112 AML other m 2022-01-20T16:40:11.58
IV.GAVE.HNN. ML:1.6 0.00020164494999999998 1.1136 AML other m 2022-01-20T16:40:15.54
IV.NRCA.HNE. ML:1.6 0.0001389802 0.5504 AML other m 2022-01-20T16:40:27.97
IV.NRCA.HNN. ML:1.7 0.00016705030000000002 0.9088 AML other m 2022-01-20T16:40:15.51
IV.MC2.EHE. ML:1.6 0.00009376892000000001 2.1632 AML other m 2022-01-20T16:40:38.11
IV.MC2.EHN. ML:1.4 0.00006586881 0.8448 AML other m 2022-01-20T16:40:31.66
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