Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 19-01-2021 and time 12:23:43 (UTC) in region 3 km N Preci (PG)

A magnitude ML 1.7 earthquake occured in region: 3 km N Preci (PG), on

  • 19-01-2021 12:23:43 (UTC)
  • 19-01-2021 13:23:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9040, 13.0460 at 10 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
Preci PG 3 724 724
Visso MC 5 1107 1831
Ussita MC 9 444 2275
Castelsantangelo sul Nera MC 9 281 2556
Sellano PG 10 1079 3635
Monte Cavallo MC 11 145 3780
Norcia PG 13 4957 8737
Cerreto di Spoleto PG 14 1075 9812
Fiordimonte MC 15 202 10014
Pieve Torina MC 16 1458 11472
Fiastra MC 17 559 12031
Acquacanina MC 18 121 12152
Bolognola MC 18 142 12294
Pievebovigliana MC 18 866 13160
Muccia MC 20 915 14075

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
58 Km E of Perugia (166134 inhabitants)
60 Km W of Teramo (54892 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
100 Km W of Montesilvano (53738 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 1.7 2021-01-19
12:23:43		 42.9042 13.0458 10 2021-07-12
16:55:07		 Bollettino Sismico Italiano INGV 89363951
Reviewed
Rev100 		ML 1.8 2021-01-19
12:23:43		 42.8993 13.0372 10 2021-01-19
12:42:28		 Sala Sismica INGV-Roma 86378401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-19 12:23:43 ± 0.06
Latitude 42.9042 ± 0.0036
Longitude 13.0458 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89363951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 386
Semi-minor axis of confidence ellipse (meter) 321
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.59805
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 89363951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-22 16:06:10

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 86378401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-19 12:42:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-01-19T12:24:04.64 0.3 undecidable manual S 353 66.378 50 0.77 56
IV.CESX.HHZ. 2021-01-19T12:23:59.44 1.0 undecidable manual S 229 49.7169 50 0.02 24
IV.EL6.EHZ. 2021-01-19T12:23:59.04 0.3 undecidable manual S 5 47.4192 50 0.25 68
IV.ARRO.EHZ. 2021-01-19T12:23:58.16 0.3 undecidable manual S 212 42.624 50 0.63 61
IV.RM33.HNZ. 2021-01-19T12:23:58.72 0.3 undecidable manual S 163 45.9207 50 0.31 67
IV.MOMA.HHZ. 2021-01-19T12:23:57.13 0.3 undecidable manual S 254 40.2264 50 0.24 69
IV.SMA1.EHZ. 2021-01-19T12:23:56.38 0.3 undecidable manual S 142 38.4282 50 -0.02 72
IV.SAP2.EHZ. 2021-01-19T12:23:56.37 0.3 undecidable manual S 53 35.742 50 0.69 61
IV.MF5.EHZ. 2021-01-19T12:23:56.16 0.3 undecidable manual S 74 34.8429 50 0.71 60
IV.ASSB.HHZ. 2021-01-19T12:23:55.11 0.3 undecidable manual S 296 34.9428 50 -0.37 67
IV.T1299.HNN. 2021-01-19T12:23:55.92 0.3 undecidable manual S 147 35.6421 50 0.28 69
IV.ARVD.HHZ. 2021-01-19T12:23:55.41 1.0 undecidable manual P 353 66.378 50 0.16 22
IV.MTRA.EHZ. 2021-01-19T12:23:54.72 0.3 undecidable manual S 120 32.8449 50 -0.2 70
IV.LNSS.HHZ. 2021-01-19T12:23:54.83 0.3 undecidable manual S 181 33.4443 50 -0.23 70
IV.GUMA.HNN. 2021-01-19T12:23:53.32 0.3 undecidable manual S 53 29.3484 50 -0.66 62
IV.TERO.HHZ. 2021-01-19T12:23:53.10 0.3 undecidable manual P 124 55.1004 50 -0.41 65
IV.MNTT.EHZ. 2021-01-19T12:23:53.02 0.6 undecidable manual P 68 47.9187 50 0.62 41
IV.SEF1.HNZ. 2021-01-19T12:23:53.36 0.3 undecidable manual S 344 28.0497 50 -0.28 70
IV.FOSV.EHZ. 2021-01-19T12:23:52.35 0.6 undecidable manual P 332 49.1175 50 -0.23 45
IV.ARRO.EHZ. 2021-01-19T12:23:52.33 0.3 undecidable manual P 212 42.624 50 0.74 59
IV.EL6.EHZ. 2021-01-19T12:23:52.33 0.6 undecidable manual P 5 47.4192 50 0.01 47
IV.CSP1.EHZ. 2021-01-19T12:23:52.36 0.3 undecidable manual S 32 24.4533 112 -0.3 70
IV.MOMA.HHZ. 2021-01-19T12:23:51.01 0.3 undecidable manual P 254 40.2264 50 -0.2 69
IV.RM33.HNZ. 2021-01-19T12:23:51.72 0.3 undecidable manual P 163 45.9207 50 -0.37 66
IV.CESX.HHZ. 2021-01-19T12:23:51.99 1.0 undecidable manual P 229 49.7169 50 -0.69 20
IV.MMO1.EHZ. 2021-01-19T12:23:51.84 0.3 undecidable manual S 91 22.8549 114 -0.29 70
IV.MF5.EHZ. 2021-01-19T12:23:50.56 0.1 undecidable manual P 74 34.8429 50 0.17 94
IV.SMA1.EHZ. 2021-01-19T12:23:50.68 0.3 undecidable manual P 142 38.4282 50 -0.25 69
IV.SAP2.EHZ. 2021-01-19T12:23:50.85 0.3 undecidable manual P 53 35.742 50 0.33 68
IV.T1299.HNN. 2021-01-19T12:23:50.40 0.3 undecidable manual P 147 35.6421 50 -0.1 71
IV.LNSS.HHZ. 2021-01-19T12:23:49.86 0.1 undecidable manual P 181 33.4443 50 -0.3 92
IV.SEF1.HNZ. 2021-01-19T12:23:49.24 1.0 undecidable manual P 344 28.0497 50 -0.1 24
IV.FDMO.HHZ. 2021-01-19T12:23:49.62 0.3 undecidable manual S 13 15.0738 124 -0.14 73
IV.CESI.HHZ. 2021-01-19T12:23:49.98 0.3 undecidable manual S 314 15.9729 122 -0.05 75
IV.MTRA.EHZ. 2021-01-19T12:23:49.72 0.1 undecidable manual P 120 32.8449 50 -0.36 90
IV.ASSB.HHZ. 2021-01-19T12:23:49.84 0.6 undecidable manual P 296 34.9428 50 -0.56 43
IV.MC2.EHZ. 2021-01-19T12:23:49.14 0.3 undecidable manual S 86 11.6772 131 0.33 71
IV.MMO1.EHZ. 2021-01-19T12:23:48.29 0.1 positive manual P 91 22.8549 114 -0.18 96
IV.CSP1.EHZ. 2021-01-19T12:23:48.54 0.1 undecidable manual P 32 24.4533 112 -0.23 94
IV.GUMA.HNN. 2021-01-19T12:23:48.68 0.3 undecidable manual P 53 29.3484 50 -0.85 57
IV.NRCA.HNZ. 2021-01-19T12:23:48.28 0.3 undecidable manual S 145 9.5793 136 -0.01 76
IT.MTCL.HGZ. 2021-01-19T12:23:48.42 0.3 undecidable manual S 339 10.6782 133 -0.13 74
IV.FEMA.HNZ. 2021-01-19T12:23:47.98 0.3 undecidable manual S 3 6.4935 147 0.36 71
IV.FDMO.HHZ. 2021-01-19T12:23:47.07 0.1 undecidable manual P 13 15.0738 124 -0.03 100
IV.CESI.HHZ. 2021-01-19T12:23:47.32 0.1 undecidable manual P 314 15.9729 122 0.06 99
IT.MTCL.HGZ. 2021-01-19T12:23:46.47 0.1 undecidable manual P 339 10.6782 133 0.06 100
IV.MC2.EHZ. 2021-01-19T12:23:46.80 0.1 undecidable manual P 86 11.6772 131 0.25 96
IV.FEMA.HNZ. 2021-01-19T12:23:46.13 0.1 undecidable manual P 3 6.4935 147 0.27 97
IV.NRCA.HNZ. 2021-01-19T12:23:46.39 0.1 positive manual P 145 9.5793 136 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.0 0.001767764 0.1984 AML other m 2021-01-19T12:23:49.48
IV.FDMO.HHN. ML:1.8 0.0006770000000000001 0.22 AML other m 2021-01-19T12:23:49.85
IV.ASSB.HHN. ML:1.4 0.00011412296 0.16 AML other m 2021-01-19T12:23:55.73
IV.FDMO.HHE. ML:1.9 0.0008057035999999999 0.16 AML other m 2021-01-19T12:23:49.90
IV.FEMA.HNN. ML:1.9 0.0012926164999999999 0.2176 AML other m 2021-01-19T12:23:49.88
IV.CESI.HHE. ML:2.2 0.00152 0.14 AML other m 2021-01-19T12:23:50.16
IV.CESI.HNE. ML:2.2 0.0015300000000000001 0.12 AML other m 2021-01-19T12:23:50.10
IV.CESI.HHN. ML:2.1 0.00127549 0.1216 AML other m 2021-01-19T12:23:50.10
IV.CESI.HNN. ML:2.1 0.001059356 0.1216 AML other m 2021-01-19T12:23:50.11
IV.TERO.HNE. ML:1.6 0.00008497253499999999 0.0704 AML other m 2021-01-19T12:24:03.11
IV.CSP1.EHN. ML:2.0 0.00060081025 0.1216 AML other m 2021-01-19T12:23:53.14
IV.TERO.HNN. ML:1.5 0.00007648947 0.1088 AML other m 2021-01-19T12:24:02.85
IV.CSP1.EHE. ML:2.0 0.00063668885 0.1216 AML other m 2021-01-19T12:23:53.60
IV.EL6.EHE. ML:1.5 0.00009592665000000001 0.1024 AML other m 2021-01-19T12:24:00.56
IV.LNSS.HNE. ML:1.6 0.00018720568 0.4224 AML other m 2021-01-19T12:23:58.91
IV.MTRA.HNN. ML:1.7 0.0002121594 1.6288 AML other m 2021-01-19T12:23:55.98
IV.MTRA.EHN. ML:1.7 0.00022138335 0.16 AML other m 2021-01-19T12:23:56.09
IV.MTRA.EHE. ML:1.8 0.000258 0.16 AML other m 2021-01-19T12:23:56.16
IV.MTRA.HNE. ML:1.8 0.0002690318 0.16 AML other m 2021-01-19T12:23:56.16
IV.MF5.EHN. ML:1.8 0.0002465 0.32 AML other m 2021-01-19T12:23:56.40
IV.LNSS.HHN. ML:1.7 0.000237 0.14 AML other m 2021-01-19T12:23:56.65
IV.LNSS.HNN. ML:1.7 0.00021598709999999998 0.1408 AML other m 2021-01-19T12:23:56.65
IV.LNSS.HHE. ML:1.6 0.00018449999999999999 0.14 AML other m 2021-01-19T12:23:56.74
IV.ASSB.HHE. ML:1.6 0.0001615 0.1 AML other m 2021-01-19T12:23:56.99
IV.MOMA.HNN. ML:1.5 0.00011275245 0.1792 AML other m 2021-01-19T12:23:58.48
IV.MF5.EHE. ML:1.8 0.0002545874 0.1984 AML other m 2021-01-19T12:23:57.37
IV.SAP2.EHE. ML:1.6 0.00015025369999999998 0.16 AML other m 2021-01-19T12:23:57.21
IV.RM33.HNN. ML:1.5 0.00008340205500000001 0.1472 AML other m 2021-01-19T12:23:59.30
IV.MOMA.HHN. ML:1.6 0.000124 0.24 AML other m 2021-01-19T12:23:58.31
IV.SAP2.EHN. ML:2.3 0.0007822793 0.1792 AML other m 2021-01-19T12:23:58.30
IV.MOMA.HHE. ML:1.9 0.000273 0.24 AML other m 2021-01-19T12:23:58.68
IV.MOMA.HNE. ML:1.9 0.000273225 0.2496 AML other m 2021-01-19T12:23:58.68
IV.SMA1.EHN. ML:1.3 0.00006957837 0.2368 AML other m 2021-01-19T12:23:57.85
IV.RM33.EHN. ML:1.4 0.00006770436 0.1408 AML other m 2021-01-19T12:23:59.38
IV.FOSV.EHE. ML:1.4 0.0000696 0.12 AML other m 2021-01-19T12:23:59.76
IV.RM33.EHE. ML:1.5 0.0001005 0.24 AML other m 2021-01-19T12:23:59.97
IV.EL6.EHN. ML:1.6 0.00010250000000000001 0.18 AML other m 2021-01-19T12:23:59.96
IV.CESX.HHN. ML:1.5 0.00008269999999999999 0.28 AML other m 2021-01-19T12:24:00.82
IV.CESX.HHE. ML:1.4 0.00005824999999999999 1.56 AML other m 2021-01-19T12:24:00.19
IV.FOSV.EHN. ML:1.3 0.00005661112999999999 0.224 AML other m 2021-01-19T12:24:01.91
IV.SMA1.EHE. ML:1.4 0.000089629565 0.3392 AML other m 2021-01-19T12:24:02.69
IV.TERO.HHN. ML:1.4 0.00006546038499999999 0.1024 AML other m 2021-01-19T12:24:02.84
IV.TERO.HHE. ML:1.5 0.00007065419 0.0768 AML other m 2021-01-19T12:24:02.88
IV.MNTT.EHN. ML:2.0 0.00026029285000000004 0.2048 AML other m 2021-01-19T12:24:03.15
IV.MNTT.EHE. ML:2.3 0.00061563815 0.16 AML other m 2021-01-19T12:24:04.88
IV.ARVD.HHE. ML:1.4 0.000038901945 0.1216 AML other m 2021-01-19T12:24:05.15
IV.ARVD.HHN. ML:1.3 0.0000357 0.14 AML other m 2021-01-19T12:24:05.29
IV.RM33.HNE. ML:1.4 0.00008022860100000002 0.2688 AML other m 2021-01-19T12:24:01.27
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