Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 21-12-2019 and time 14:59:24 (Italy) in region 2 km S Ussita (MC)

A magnitude ML 2.0 earthquake occured in region: 2 km S Ussita (MC), on

  • 21-12-2019 13:59:24 (UTC)
  • 21-12-2019 14:59:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9270, 13.1380 at 9 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
Ussita MC 2 444 444
Castelsantangelo sul Nera MC 4 281 725
Visso MC 4 1107 1832
Preci PG 10 724 2556
Bolognola MC 11 142 2698
Acquacanina MC 12 121 2819
Fiastra MC 12 559 3378
Fiordimonte MC 13 202 3580
Monte Cavallo MC 13 145 3725
Pieve Torina MC 15 1458 5183
Norcia PG 15 4957 10140
Montemonaco AP 16 604 10744
Pievebovigliana MC 16 866 11610
Montefortino FM 17 1178 12788
Sellano PG 18 1079 13867
Sarnano MC 18 3264 17131
Montegallo AP 19 523 17654
Amandola FM 19 3629 21283
Muccia MC 19 915 22198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
55 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
95 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 2.0 2019-12-21
13:59:24		 42.9268 13.1382 9 2020-02-28
16:42:25		 Bollettino Sismico Italiano INGV 76575911
Reviewed
Rev100 		ML 2.0 2019-12-21
13:59:24		 42.9272 13.1368 9 2019-12-21
14:10:36		 Sala Sismica INGV-Roma 74856401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-21 13:59:24 ± 0.04
Latitude 42.9268 ± 0.0018
Longitude 13.1382 ± 0.0037
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 76575911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 226
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 47
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) 0.75003
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 74856401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-21 14:10:36

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 76575911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-16 21:56:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIGS.HHZ. 2019-12-21T13:59:44.20 0.3 undecidable manual S 146 63.3921 50 0.04 68
IV.CESX.HHZ. 2019-12-21T13:59:42.80 0.3 undecidable manual S 232 57.0984 50 0.32 65
IV.CAMP.HHE. 2019-12-21T13:59:40.00 0.6 undecidable manual S 153 48.7179 50 -0.23 45
IV.EL6.EHZ. 2019-12-21T13:59:39.50 0.3 undecidable manual S 356 44.7219 50 0.32 66
IV.PIEI.HHZ. 2019-12-21T13:59:38.95 0.3 undecidable manual P 324 83.25 50 0.08 65
IV.SMA1.EHZ. 2019-12-21T13:59:37.00 0.6 undecidable manual S 154 36.6411 50 0 48
IV.LNSS.HHZ. 2019-12-21T13:59:37.00 0.3 undecidable manual S 193 36.8298 50 -0.06 71
IV.ARVD.HHZ. 2019-12-21T13:59:36.55 0.6 undecidable manual P 346 65.2902 50 0.45 41
IV.GAVE.HNZ. 2019-12-21T13:59:35.80 0.3 undecidable manual S 217 32.745 50 -0.17 70
IV.GIGS.HHZ. 2019-12-21T13:59:35.56 0.3 undecidable manual P 146 63.3921 50 -0.24 65
IV.MF5.EHZ. 2019-12-21T13:59:34.80 0.3 undecidable manual S 75 26.9508 109 0.51 66
IV.CESX.HHZ. 2019-12-21T13:59:34.65 0.1 undecidable manual P 232 57.0984 50 -0.19 89
IV.MTRA.EHZ. 2019-12-21T13:59:34.40 0.3 undecidable manual S 132 28.2495 108 -0.32 68
IV.SAP2.EHE. 2019-12-21T13:59:34.80 0.3 undecidable manual S 48 28.3494 108 0.06 72
IV.MML1.HNN. 2019-12-21T13:59:33.30 0.3 undecidable manual S 327 24.753 111 -0.26 70
IV.RM33.EHZ. 2019-12-21T13:59:33.22 0.3 undecidable manual P 172 46.8198 50 -0.02 70
IV.CAMP.HHE. 2019-12-21T13:59:33.27 0.6 undecidable manual P 153 48.7179 50 -0.27 45
IV.MOMA.HNZ. 2019-12-21T13:59:33.53 0.3 undecidable manual P 254 48.1185 50 0.08 70
IV.TERO.HHZ. 2019-12-21T13:59:33.60 0.3 undecidable manual P 131 50.8158 50 -0.25 67
IV.MNTT.EHZ. 2019-12-21T13:59:32.13 0.6 undecidable manual P 68 40.0266 50 -0.08 47
IV.EL6.EHZ. 2019-12-21T13:59:32.93 0.6 undecidable manual P 356 44.7219 50 0 47
IV.CESI.HNZ. 2019-12-21T13:59:32.30 0.3 undecidable manual S 295 20.868 114 -0.01 74
IV.PF6.EHN. 2019-12-21T13:59:32.50 0.3 undecidable manual S 11 23.8539 111 -0.78 59
IV.CSP1.EHZ. 2019-12-21T13:59:31.50 0.3 undecidable manual S 16 19.0698 116 -0.26 70
IV.SMA1.EHZ. 2019-12-21T13:59:31.50 0.3 negative manual P 154 36.6411 50 -0.17 70
IV.GAVE.HNZ. 2019-12-21T13:59:31.09 0.1 undecidable manual P 217 32.745 50 0.01 97
IV.T1299.HNN. 2019-12-21T13:59:31.52 0.3 undecidable manual P 160 34.5432 50 0.17 70
IV.LNSS.HHZ. 2019-12-21T13:59:31.58 0.3 undecidable manual P 193 36.8298 50 -0.13 70
IV.MNTP.HNZ. 2019-12-21T13:59:31.89 0.3 undecidable manual P 49 35.5422 50 0.37 67
IV.MF5.EHZ. 2019-12-21T13:59:30.25 0.1 positive manual P 75 26.9508 109 0.14 95
IV.MMO1.EHZ. 2019-12-21T13:59:30.60 0.3 undecidable manual S 101 15.6732 121 -0.11 73
IV.MTRA.EHZ. 2019-12-21T13:59:30.08 0.3 undecidable manual P 132 28.2495 108 -0.27 69
IV.SAP2.EHE. 2019-12-21T13:59:30.50 0.1 undecidable manual P 48 28.3494 108 0.13 95
IV.NRCA.HNZ. 2019-12-21T13:59:29.30 0.3 undecidable manual S 191 10.5783 132 0.03 75
IV.PF6.EHN. 2019-12-21T13:59:29.83 0.3 undecidable manual P 11 23.8539 111 0.31 69
IV.MML1.HNN. 2019-12-21T13:59:29.48 0.1 undecidable manual P 327 24.753 111 -0.2 94
IV.FDMO.HHZ. 2019-12-21T13:59:29.50 0.3 undecidable manual S 341 12.876 126 -0.4 69
IV.CESI.HNZ. 2019-12-21T13:59:29.03 0.3 undecidable manual P 295 20.868 114 0.07 73
IV.FEMA.HNZ. 2019-12-21T13:59:28.80 0.3 undecidable manual S 299 8.1807 139 0.11 74
IV.CSP1.EHZ. 2019-12-21T13:59:28.54 0.1 positive manual P 16 19.0698 116 -0.11 97
IV.MC2.EHZ. 2019-12-21T13:59:28.10 0.3 undecidable manual S 113 4.4955 154 0.12 74
IV.MMO1.EHZ. 2019-12-21T13:59:28.06 0.1 undecidable manual P 101 15.6732 121 0.02 99
IV.NRCA.HNZ. 2019-12-21T13:59:27.49 0.1 undecidable manual P 191 10.5783 132 0.28 95
IT.MTCL.HGZ. 2019-12-21T13:59:27.73 0.1 positive manual P 0.02 100
IV.FEMA.HNZ. 2019-12-21T13:59:27.16 0.1 undecidable manual P 299 8.1807 139 0.28 95
IV.FDMO.HHZ. 2019-12-21T13:59:27.58 0.1 negative manual P 341 12.876 126 0.01 100
IV.MC2.EHZ. 2019-12-21T13:59:26.72 0.3 undecidable manual P 113 4.4955 154 0.25 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.5 0.0052634355 1.6992 AML other m 2019-12-21T13:59:28.12
IV.NRCA.HNN. ML:2.4 0.0030697325 0.0832 AML other m 2019-12-21T13:59:29.51
IV.NRCA.HHN. ML:2.4 0.0034800079999999997 0.0832 AML other m 2019-12-21T13:59:29.51
IV.FEMA.HNN. ML:2.2 0.00237607 0.16 AML other m 2019-12-21T13:59:30.09
IV.FDMO.HHE. ML:2.0 0.0010595140000000001 1.6608 AML other m 2019-12-21T13:59:30.96
IV.FDMO.HHN. ML:2.1 0.001584684 0.1792 AML other m 2019-12-21T13:59:30.27
IV.NRCA.HNE. ML:2.3 0.0027400195 0.1344 AML other m 2019-12-21T13:59:31.94
IV.NRCA.HHE. ML:2.4 0.0029069630000000003 0.1408 AML other m 2019-12-21T13:59:31.88
IV.CSP1.EHE. ML:1.8 0.0004619721 0.2176 AML other m 2019-12-21T13:59:32.10
IV.CESI.HNE. ML:1.9 0.0006085624 0.1408 AML other m 2019-12-21T13:59:32.44
IV.CESI.HNN. ML:2.1 0.0010030461 0.16 AML other m 2019-12-21T13:59:32.62
IV.CESI.HHN. ML:2.1 0.0010162896999999999 0.16 AML other m 2019-12-21T13:59:32.62
IV.CESI.HHE. ML:1.9 0.0006085142 1.8208 AML other m 2019-12-21T13:59:32.05
IV.CSP1.EHN. ML:1.8 0.00052458195 0.3648 AML other m 2019-12-21T13:59:33.52
IV.MTRA.HNE. ML:2.1 0.0007081936 0.128 AML other m 2019-12-21T13:59:34.85
IV.MTRA.EHE. ML:2.1 0.00070940855 0.1216 AML other m 2019-12-21T13:59:34.85
IV.MTRA.EHN. ML:2.2 0.00077102485 0.3008 AML other m 2019-12-21T13:59:35.10
IV.MTRA.HNN. ML:2.2 0.0007481986499999999 0.2944 AML other m 2019-12-21T13:59:35.11
IV.LNSS.HHE. ML:2.1 0.0004593915 0.1408 AML other m 2019-12-21T13:59:37.65
IV.LNSS.HNE. ML:2.0 0.0004201243 0.1664 AML other m 2019-12-21T13:59:37.65
IV.SMA1.EHE. ML:1.8 0.00026200785 0.1216 AML other m 2019-12-21T13:59:38.92
IV.LNSS.HHN. ML:2.1 0.00046551485000000006 0.1856 AML other m 2019-12-21T13:59:38.93
IV.LNSS.HNN. ML:2.1 0.0004479115 0.192 AML other m 2019-12-21T13:59:38.93
IV.SMA1.EHN. ML:1.6 0.0001616309 0.2624 AML other m 2019-12-21T13:59:40.39
IV.TERO.HHN. ML:2.0 0.00023125515 1.8208 AML other m 2019-12-21T13:59:40.92
IV.TERO.HHE. ML:2.0 0.0002542607 0.1792 AML other m 2019-12-21T13:59:41.06
IV.MNTT.EHN. ML:2.2 0.0005466448 0.32 AML other m 2019-12-21T13:59:41.40
IV.RM33.HNN. ML:1.8 0.00016714055 1.7824 AML other m 2019-12-21T13:59:42.09
IV.RM33.EHN. ML:1.6 0.000110359575 1.8016 AML other m 2019-12-21T13:59:42.09
IV.RM33.EHE. ML:1.7 0.00013106618 0.2368 AML other m 2019-12-21T13:59:42.24
IV.EL6.EHE. ML:1.6 0.00013653390000000002 0.3008 AML other m 2019-12-21T13:59:42.91
IV.MNTT.EHE. ML:2.1 0.00045020745 0.2752 AML other m 2019-12-21T13:59:43.13
IV.CESX.HHN. ML:1.8 0.00013311480000000002 0.3584 AML other m 2019-12-21T13:59:43.47
IV.CESX.HHE. ML:1.7 0.00011322975 0.4416 AML other m 2019-12-21T13:59:44.51
IV.GIGS.HHE. ML:1.4 0.000049778985 0.1216 AML other m 2019-12-21T13:59:44.98
IV.GIGS.HHN. ML:1.4 0.00005247707 1.5648 AML other m 2019-12-21T13:59:45.10
IV.PIEI.HHE. ML:1.4 0.000032283684999999996 0.1408 AML other m 2019-12-21T13:59:51.15
IV.PIEI.HHN. ML:1.5 0.000039782535 0.6144 AML other m 2019-12-21T13:59:51.17
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
Waveforms Seismic signals in miniseed + resp format Download