Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 21-12-2019 and time 16:32:14 (UTC) in region 4 km N Montereale (AQ)

A magnitude ML 2.3 earthquake occured in region: 4 km N Montereale (AQ), on

  • 21-12-2019 16:32:14 (UTC)
  • 21-12-2019 17:32:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5640, 13.2370 at 13 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
Montereale AQ 4 2581 2581
Capitignano AQ 7 665 3246
Amatrice RI 9 2657 5903
Cittareale RI 9 482 6385
Borbona RI 10 617 7002
Campotosto AQ 11 542 7544
Cagnano Amiterno AQ 12 1369 8913
Posta RI 12 694 9607
Barete AQ 13 737 10344
Accumoli RI 15 667 11011
Pizzoli AQ 15 4326 15337
Micigliano RI 19 127 15464

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
62 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km NE of Tivoli (56533 inhabitants)
80 Km W of Chieti (51815 inhabitants)
81 Km W of Pescara (121014 inhabitants)
92 Km SE of Perugia (166134 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
97 Km NE of Roma (2864731 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 2.3 2019-12-21
16:32:14		 42.564 13.2368 13 2020-02-28
16:42:25		 Bollettino Sismico Italiano INGV 76572071
Reviewed
Rev100 		ML 2.2 2019-12-21
16:32:14		 42.5658 13.2398 13 2019-12-21
16:46:06		 Sala Sismica INGV-Roma 74860331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-21 16:32:14 ± 0.07
Latitude 42.5640 ± 0.0036
Longitude 13.2368 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76572071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 439
Semi-minor axis of confidence ellipse (meter) 47
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 44
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.53604
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 49
Type of magnitude ML
Reference to an origin 76572071
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-16 17:07:52

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 74860331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-21 16:46:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FNVD.HHZ. 2019-12-21T16:33:23.81 3.0 undecidable manual Sg 5.59 0
IV.MTMR.HNZ. 2019-12-21T16:33:17.57 3.0 undecidable manual Sn 1.77 0
IV.CPGN.EHZ. 2019-12-21T16:33:00.34 3.0 undecidable manual S 2.11 0
IV.ARVD.HHZ. 2019-12-21T16:32:47.30 3.0 undecidable manual S 0.01 0
IV.PTRJ.HNZ. 2019-12-21T16:32:41.06 3.0 undecidable manual P 170.496 -1.34 0
IV.MOMA.HHZ. 2019-12-21T16:32:33.80 0.3 undecidable manual S 296 60.495 92 0.46 62
IV.CESI.HHZ. 2019-12-21T16:32:32.30 0.6 undecidable manual S 331 55.8996 92 0.2 44
IV.FDMO.HHZ. 2019-12-21T16:32:31.60 0.3 undecidable manual S 347 53.8017 92 0.05 68
IV.MF5.EHZ. 2019-12-21T16:32:31.50 0.3 undecidable manual S 21 50.4162 93 0.86 54
IV.MC2.EHZ. 2019-12-21T16:32:28.00 0.3 undecidable manual S 354 38.7279 94 0.47 64
IV.CERT.HHZ. 2019-12-21T16:32:27.00 0.3 undecidable manual P 197 71.373 92 -0.14 66
IV.MMO1.EHZ. 2019-12-21T16:32:27.10 0.3 undecidable manual S 11 37.9287 94 -0.21 69
IV.ASSB.HHZ. 2019-12-21T16:32:27.37 0.6 undecidable manual P 319 70.9734 92 0.3 42
IV.ARRO.EHZ. 2019-12-21T16:32:27.10 0.3 undecidable manual S 273 38.5281 94 -0.37 67
IV.SRES.HHZ. 2019-12-21T16:32:27.15 0.3 undecidable manual P 239 69.6747 92 0.26 64
IV.MNTT.EHZ. 2019-12-21T16:32:26.31 0.3 undecidable manual P 28 62.493 92 0.54 61
IV.FIAM.HHZ. 2019-12-21T16:32:26.50 0.3 undecidable manual S 197 34.2435 95 0.16 71
IV.OFFI.HHZ. 2019-12-21T16:32:25.35 0.1 undecidable manual P 41 55.1004 92 0.72 76
IV.NRCA.HHZ. 2019-12-21T16:32:25.20 0.3 undecidable manual S 342 31.5462 96 -0.41 68
IV.MOMA.HHZ. 2019-12-21T16:32:25.61 0.3 undecidable manual P 296 60.495 92 0.14 67
IV.GAVE.EHZ. 2019-12-21T16:32:25.30 0.3 undecidable manual S 297 31.3464 96 -0.27 70
IV.CESI.HHZ. 2019-12-21T16:32:24.71 0.3 undecidable manual P 331 55.8996 92 -0.05 70
IV.TERO.HHZ. 2019-12-21T16:32:24.90 0.3 undecidable manual S 78 30.6471 96 -0.49 65
IV.GIGS.HHZ. 2019-12-21T16:32:24.90 0.3 undecidable manual S 114 30.1476 96 -0.34 67
IV.FDMO.HHZ. 2019-12-21T16:32:24.21 0.1 undecidable manual P 347 53.8017 92 -0.22 90
IV.MF5.EHZ. 2019-12-21T16:32:24.19 0.3 undecidable manual P 21 50.4162 93 0.28 66
IV.FAGN.HHZ. 2019-12-21T16:32:24.70 0.6 undecidable manual P 139 43.623 93 1.83 22
MN.AQU.HNN. 2019-12-21T16:32:24.81 0.6 undecidable manual S 149 27.0507 97 0.38 46
IV.MTRA.EHZ. 2019-12-21T16:32:23.30 0.3 undecidable manual S 31 25.0527 98 -0.59 64
IV.MC2.EHZ. 2019-12-21T16:32:22.04 0.1 undecidable manual P 354 38.7279 94 -0.08 95
IV.LNSS.HNZ. 2019-12-21T16:32:21.40 0.3 undecidable manual S 285 16.5723 110 -0.31 71
IV.MMO1.EHZ. 2019-12-21T16:32:21.76 0.1 undecidable manual P 11 37.9287 94 -0.23 92
IV.CAMP.HHZ. 2019-12-21T16:32:21.10 0.3 undecidable manual S 102 14.3745 115 -0.06 73
IV.FIAM.HHZ. 2019-12-21T16:32:21.51 0.1 undecidable manual P 197 34.2435 95 0.08 95
IV.ARRO.EHZ. 2019-12-21T16:32:21.97 0.1 undecidable manual P 273 38.5281 94 -0.12 94
IV.GAVE.EHZ. 2019-12-21T16:32:20.85 0.1 undecidable manual P 297 31.3464 96 -0.13 95
IV.TERO.HHZ. 2019-12-21T16:32:20.70 0.1 undecidable manual P 78 30.6471 96 -0.18 93
IV.NRCA.HHZ. 2019-12-21T16:32:20.76 0.3 undecidable manual P 342 31.5462 96 -0.25 70
IV.SMA1.EHZ. 2019-12-21T16:32:20.30 0.3 undecidable manual S 47 10.878 127 -0.06 74
IV.GIGS.HHZ. 2019-12-21T16:32:20.64 0.1 undecidable manual P 114 30.1476 96 -0.15 94
IV.RM33.HNZ. 2019-12-21T16:32:19.50 0.3 undecidable manual S 197 6.3936 146 -0.03 74
IV.T1299.HNN. 2019-12-21T16:32:19.68 0.3 undecidable manual S 25 8.5803 136 -0.23 71
IV.MTRA.EHZ. 2019-12-21T16:32:19.78 0.1 undecidable manual P 31 25.0527 98 -0.23 94
MN.AQU.HNN. 2019-12-21T16:32:19.75 0.6 undecidable manual P 149 27.0507 97 -0.57 42
IV.CAMP.HHZ. 2019-12-21T16:32:18.48 0.3 undecidable manual P 102 14.3745 115 0.04 75
IV.SMA1.EHZ. 2019-12-21T16:32:18.22 0.1 positive manual P 47 10.878 127 0.24 96
IV.LNSS.HNZ. 2019-12-21T16:32:18.83 0.1 undecidable manual P 285 16.5723 110 0.08 98
IV.T1299.HNN. 2019-12-21T16:32:17.79 0.1 undecidable manual P 25 8.5803 136 0.07 100
IV.RM33.HNZ. 2019-12-21T16:32:17.76 0.1 undecidable manual P 197 6.3936 146 0.26 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OFFI.HHN. ML:2.4 0.0006222006 0.6048 AML other m 2019-12-21T16:32:30.86
IV.RM33.HNN. ML:2.5 0.0037619059999999998 0.2304 AML other m 2019-12-21T16:32:19.70
IV.RM33.EHE. ML:2.7 0.0064214225 0.2816 AML other m 2019-12-21T16:32:19.79
IV.RM33.HNE. ML:2.7 0.006557461 0.2688 AML other m 2019-12-21T16:32:19.79
IV.SMA1.EHN. ML:2.8 0.006636948 0.2944 AML other m 2019-12-21T16:32:20.76
IV.SMA1.EHE. ML:3.1 0.0129245625 0.4608 AML other m 2019-12-21T16:32:20.81
IV.LNSS.HNN. ML:2.6 0.0034090545 0.1792 AML other m 2019-12-21T16:32:21.88
IV.LNSS.HHN. ML:2.6 0.0035443535000000003 0.1792 AML other m 2019-12-21T16:32:21.88
IV.LNSS.HHE. ML:2.9 0.0066856985 0.1408 AML other m 2019-12-21T16:32:21.98
IV.LNSS.HNE. ML:2.9 0.006294192499999999 0.1408 AML other m 2019-12-21T16:32:21.98
IV.CAMP.HHE. ML:1.8 0.0006196725 1.5776 AML other m 2019-12-21T16:32:21.93
IV.CAMP.HHN. ML:1.9 0.0006586225500000001 0.2688 AML other m 2019-12-21T16:32:23.22
IV.MTRA.HNN. ML:2.6 0.0022490145 0.2176 AML other m 2019-12-21T16:32:23.70
IV.MTRA.EHN. ML:2.6 0.002221939 0.2176 AML other m 2019-12-21T16:32:23.71
IV.MTRA.HNE. ML:2.4 0.0015572539999999999 0.2944 AML other m 2019-12-21T16:32:24.18
IV.MTRA.EHE. ML:2.4 0.0015712604999999998 0.2816 AML other m 2019-12-21T16:32:24.19
IV.TERO.HHN. ML:2.3 0.0009210533999999999 0.1664 AML other m 2019-12-21T16:32:25.09
IV.TERO.HHE. ML:2.2 0.00072489815 0.0768 AML other m 2019-12-21T16:32:25.09
IV.GAVE.HNE. ML:2.5 0.0014195625 0.2176 AML other m 2019-12-21T16:32:25.55
IV.GAVE.EHE. ML:2.6 0.0015649415 0.2432 AML other m 2019-12-21T16:32:25.57
IV.GAVE.HNN. ML:1.9 0.00037107599999999997 0.2176 AML other m 2019-12-21T16:32:25.46
IV.GAVE.EHN. ML:2.4 0.0011082730000000001 0.1664 AML other m 2019-12-21T16:32:25.57
IV.NRCA.HNE. ML:2.5 0.0015466055000000001 0.1408 AML other m 2019-12-21T16:32:25.75
IV.NRCA.HHE. ML:2.6 0.0015774455 0.1408 AML other m 2019-12-21T16:32:25.75
IV.NRCA.HNN. ML:2.4 0.001110572 0.128 AML other m 2019-12-21T16:32:25.75
IV.NRCA.HHN. ML:2.4 0.0012869919999999998 0.128 AML other m 2019-12-21T16:32:25.82
IV.GIGS.HHE. ML:1.4 0.00011161465000000001 0.2048 AML other m 2019-12-21T16:32:26.25
IV.GIGS.HHN. ML:1.2 0.00007732235 0.2432 AML other m 2019-12-21T16:32:26.54
IV.FIAM.HHE. ML:1.8 0.0002498097 1.4752 AML other m 2019-12-21T16:32:27.23
IV.ARRO.EHN. ML:2.0 0.00039485485 0.1792 AML other m 2019-12-21T16:32:28.25
IV.ARRO.EHE. ML:1.9 0.00027851655 0.2304 AML other m 2019-12-21T16:32:29.16
IV.MF5.EHE. ML:2.1 0.00032307734999999997 0.3328 AML other m 2019-12-21T16:32:32.39
IV.FDMO.HHN. ML:1.8 0.000141161135 0.2816 AML other m 2019-12-21T16:32:32.45
IV.FDMO.HHE. ML:2.0 0.0002343125 1.8336 AML other m 2019-12-21T16:32:33.04
IV.CESI.HHE. ML:1.7 0.000104664105 0.1664 AML other m 2019-12-21T16:32:33.99
IV.MOMA.HNN. ML:2.2 0.0003474797 1.7952 AML other m 2019-12-21T16:32:35.00
IV.MOMA.HHN. ML:2.3 0.00037855395 1.7824 AML other m 2019-12-21T16:32:35.00
IV.MOMA.HHE. ML:2.4 0.00047242494999999993 0.2432 AML other m 2019-12-21T16:32:35.04
IV.MOMA.HNE. ML:2.4 0.00047365875 0.256 AML other m 2019-12-21T16:32:35.04
IV.CESI.HHN. ML:1.9 0.00018387655 0.256 AML other m 2019-12-21T16:32:35.51
IV.CESI.HNN. ML:2.6 0.0008637471000000001 0.512 AML other m 2019-12-21T16:32:35.39
IV.CERT.HHE. ML:1.9 0.00011970829499999999 0.3968 AML other m 2019-12-21T16:32:41.26
IV.CERT.HHN. ML:1.8 0.000094563655 0.4992 AML other m 2019-12-21T16:32:41.17
IV.SRES.HHN. ML:1.7 0.00007887956 0.6016 AML other m 2019-12-21T16:32:43.63
IV.MF5.EHN. ML:2.2 0.0004730396 0.144 AML other m 2019-12-21T16:32:44.08
IV.SRES.HHE. ML:1.7 0.00008175681499999999 0.3968 AML other m 2019-12-21T16:32:44.35
IV.FIAM.HHN. ML:1.7 0.00020042054999999998 1.5776 AML other m 2019-12-21T16:32:26.01
IV.FIAM.HNN. ML:2.0 0.00039695865 1.5648 AML other m 2019-12-21T16:32:26.01
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