Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 29-12-2019 and time 04:11:08 (Italy) in region 4 km NE Amatrice (RI)

A magnitude ML 1.4 earthquake occured in region: 4 km NE Amatrice (RI), on

  • 29-12-2019 03:11:08 (UTC)
  • 29-12-2019 04:11:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6580, 13.3180 at 11 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
Amatrice RI 4 2657 2657
Accumoli RI 7 667 3324
Campotosto AQ 12 542 3866
Arquata del Tronto AP 13 1178 5044
Cittareale RI 14 482 5526
Acquasanta Terme AP 15 2916 8442
Capitignano AQ 15 665 9107
Montereale AQ 16 2581 11688
Cortino TE 16 656 12344
Valle Castellana TE 17 977 13321
Rocca Santa Maria TE 18 537 13858
Crognaleto TE 18 1297 15155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Teramo (54892 inhabitants)
35 Km N of L'Aquila (69753 inhabitants)
56 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
77 Km W of Pescara (121014 inhabitants)
78 Km W of Chieti (51815 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 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 1.4 2019-12-29
03:11:08		 42.6578 13.3175 11 2020-02-28
16:42:19		 Bollettino Sismico Italiano INGV 75676461
Reviewed
Rev100 		ML 1.6 2019-12-29
03:11:08		 42.6747 13.292 8 2019-12-29
03:17:25		 Sala Sismica INGV-Roma 75069101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-29 03:11:08 ± 0.05
Latitude 42.6578 ± 0.0036
Longitude 13.3175 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75676461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 441
Semi-minor axis of confidence ellipse (meter) 335
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 123
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) 80
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68978
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 75676461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-20 15:12:25

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 75069101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-29 03:17:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2019-12-29T03:11:34.67 3.0 undecidable manual Pn -0.14 0
IV.APEC.HHZ. 2019-12-29T03:11:31.59 3.0 undecidable manual P 3.06 0
IV.CESI.HHE. 2019-12-29T03:11:24.64 0.3 undecidable manual S 319 51.1155 50 0.19 68
IV.CSP1.EHZ. 2019-12-29T03:11:24.12 0.3 undecidable manual S 349 49.0176 50 0.23 68
IV.ARRO.EHZ. 2019-12-29T03:11:23.35 0.3 undecidable manual S 259 45.9207 50 0.29 67
IV.FDMO.HHZ. 2019-12-29T03:11:23.18 0.3 undecidable manual S 336 46.0206 50 0.09 70
IT.MTCL.HGZ. 2019-12-29T03:11:22.94 0.6 undecidable manual S 325 45.4212 50 0.01 48
IV.EL6.EHZ. 2019-12-29T03:11:21.95 0.6 undecidable manual P 347 76.5678 50 0.41 41
IV.MF5.EHZ. 2019-12-29T03:11:21.46 0.3 undecidable manual S 17 38.4282 50 0.4 67
IV.MC2.EHZ. 2019-12-29T03:11:19.02 0.3 undecidable manual S 340 30.0477 50 0.2 71
IV.GAVE.EHN. 2019-12-29T03:11:19.99 0.6 undecidable manual S 276 34.743 50 -0.09 48
IV.VCEL.EHN. 2019-12-29T03:11:18.06 0.1 undecidable manual P 124 51.8037 50 0.33 88
IV.CSP1.EHZ. 2019-12-29T03:11:17.15 0.3 undecidable manual P 349 49.0176 50 -0.15 69
IV.NRCA.HHZ. 2019-12-29T03:11:17.18 0.3 undecidable manual S 320 25.5522 50 -0.46 67
IT.MTCL.HGZ. 2019-12-29T03:11:17.09 0.1 undecidable manual P 325 45.4212 50 0.34 89
IV.MMO1.EHZ. 2019-12-29T03:11:17.64 0.3 undecidable manual S 2 26.8509 50 -0.33 69
IV.CESI.HHE. 2019-12-29T03:11:17.42 0.3 undecidable manual P 319 51.1155 50 -0.21 68
IV.FDMO.HHZ. 2019-12-29T03:11:16.69 0.3 undecidable manual P 336 46.0206 50 -0.15 69
IV.OFFI.HHE. 2019-12-29T03:11:16.69 0.6 undecidable manual P 44 42.9237 50 0.32 45
IV.LNSS.HHZ. 2019-12-29T03:11:16.87 0.1 undecidable manual S 255 23.4543 50 -0.19 96
IV.ARRO.EHZ. 2019-12-29T03:11:16.65 0.3 undecidable manual P 259 45.9207 50 -0.17 69
IV.MF5.EHZ. 2019-12-29T03:11:15.90 0.3 undecidable manual P 17 38.4282 50 0.23 69
IV.RM33.EHZ. 2019-12-29T03:11:15.86 0.3 undecidable manual S 207 18.5703 120 0.1 74
IV.GAVE.EHN. 2019-12-29T03:11:14.85 0.1 undecidable manual P 276 34.743 50 -0.25 92
IV.CAMP.HHZ. 2019-12-29T03:11:14.66 0.3 undecidable manual S 151 15.4734 125 -0.2 73
IV.MC2.EHZ. 2019-12-29T03:11:14.45 0.3 undecidable manual P 340 30.0477 50 0.07 73
IV.GIGS.HHN. 2019-12-29T03:11:14.05 0.1 undecidable manual P 137 30.8469 50 -0.45 89
IV.NRCA.HHZ. 2019-12-29T03:11:13.51 0.3 positive manual P 320 25.5522 50 -0.18 72
IV.MMO1.EHZ. 2019-12-29T03:11:13.67 0.3 undecidable manual P 2 26.8509 50 -0.21 71
IV.LNSS.HHZ. 2019-12-29T03:11:13.37 0.1 undecidable manual P 255 23.4543 50 0.01 99
IV.MTRA.HNZ. 2019-12-29T03:11:13.63 0.3 undecidable manual S 30 12.6762 130 -0.48 69
IV.T1299.HNZ. 2019-12-29T03:11:12.37 0.3 undecidable manual S 228 3.8961 160 0.06 76
IV.SMA1.EHZ. 2019-12-29T03:11:12.29 0.3 undecidable manual S 154 3.3966 163 0.04 76
IV.CAMP.HHZ. 2019-12-29T03:11:12.05 0.1 undecidable manual P 151 15.4734 125 -0.04 100
IV.RM33.EHZ. 2019-12-29T03:11:12.69 0.1 positive manual P 207 18.5703 120 0.08 99
IV.MTRA.HNZ. 2019-12-29T03:11:11.53 0.1 undecidable manual P 30 12.6762 130 -0.12 99
IV.T1299.HNZ. 2019-12-29T03:11:10.90 0.3 undecidable manual P 228 3.8961 160 0.29 73
IV.SMA1.EHZ. 2019-12-29T03:11:10.82 0.1 undecidable manual P 154 3.3966 163 0.24 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.7 0.000942 0.3 AML other m 2019-12-29T03:11:12.37
IV.SMA1.EHE. ML:1.6 0.000676 0.34 AML other m 2019-12-29T03:11:12.37
IV.RM33.EHN. ML:1.4 0.00020050000000000002 1.2 AML other m 2019-12-29T03:11:15.95
IV.RM33.EHE. ML:1.4 0.000189 0.96 AML other m 2019-12-29T03:11:16.08
IV.LNSS.HHN. ML:1.2 0.00009575 0.52 AML other m 2019-12-29T03:11:17.27
IV.LNSS.HHE. ML:1.2 0.00010002771499999999 0.1408 AML other m 2019-12-29T03:11:17.39
IV.NRCA.HHN. ML:1.5 0.0001865 0.62 AML other m 2019-12-29T03:11:18.30
IV.NRCA.HHE. ML:1.5 0.000174 1.8 AML other m 2019-12-29T03:11:19.04
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