Earthquake with magnitude of ML 1.6 on date 30-12-2019 and time 23:21:26 (UTC) in region 6 km W Arquata del Tronto (AP)

A magnitude ML 1.6 earthquake occured in region: 6 km W Arquata del Tronto (AP), on

  • 30-12-2019 23:21:26 (UTC)
  • 31-12-2019 00:21:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.78, 13.22 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Arquata del Tronto AP 6 1178 1178
Accumoli RI 10 667 1845
Norcia PG 11 4957 6802
Montegallo AP 11 523 7325
Castelsantangelo sul Nera MC 14 281 7606
Acquasanta Terme AP 15 2916 10522
Montemonaco AP 16 604 11126
Amatrice RI 18 2657 13783
Cascia PG 19 3217 17000
Preci PG 19 724 17724
Cittareale RI 19 482 18206
Ussita MC 20 444 18650

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
50 Km N of L'Aquila (69753 inhabitants)
53 Km E of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
91 Km NW of Chieti (51815 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km S of Ancona (100861 inhabitants)
97 Km NE of Tivoli (56533 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
Rev 1000 ML 1.6 2019-12-30
23:21:26
42.78 13.22 11 2020-02-28
16:42:24
Bollettino Sismico Italiano INGV 76435981
Rev 100 ML 1.6 2019-12-30
23:21:26
42.78 13.23 11 2019-12-30
23:29:05
Sala Sismica INGV-Roma 75131891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-30 23:21:26 ± 0.05
Latitude 42.78 ± 0.00
Longitude 13.22 ± 0.00
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 76435981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 409
Semi-minor axis of confidence ellipse (meter) 250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.49013
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 76435981
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-11 15:14:30

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 75131891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-30 23:29:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IFOR.HHZ. 2019-12-30T23:22:40.86 3.0 undecidable manual Sg 6.75 0
IV.PAOL.HHZ. 2019-12-30T23:22:31.72 3.0 undecidable manual Sn 0.83 0
IV.SALB.HHZ. 2019-12-30T23:22:17.41 3.0 positive manual Pn -2.56 0
IV.PAOL.HHZ. 2019-12-30T23:22:07.11 3.0 undecidable manual Pg 10.08 0
IV.VVLD.HHZ. 2019-12-30T23:22:05.35 3.0 undecidable manual Sn -0.3 0
ZM.T1368.EHZ. 2019-12-30T23:21:57.59 3.0 undecidable manual Pn -1.41 0
IV.FIR.HHZ. 2019-12-30T23:21:57.37 3.0 undecidable manual S 3.72 0
IV.ASSB.HHZ. 2019-12-30T23:21:44.30 0.6 undecidable manual S 303 0.4901 50 0.56 42
IV.MAON.HHZ. 2019-12-30T23:21:43.02 3.0 undecidable manual Pn 0.03 0
IV.GIGS.HHZ. 2019-12-30T23:21:41.00 0.6 undecidable manual S 142 0.4155 50 -0.52 43
IV.MNTT.EHZ. 2019-12-30T23:21:41.04 0.3 undecidable manual S 44 0.3912 50 0.23 69
IV.MML1.HNE. 2019-12-30T23:21:40.70 0.1 undecidable manual S 331 0.3813 50 0.2 93
IV.SAP2.EHE. 2019-12-30T23:21:39.90 0.3 undecidable manual S 22 0.3408 50 0.58 64
IV.PF6.EHN. 2019-12-30T23:21:39.70 0.6 undecidable manual S 356 0.3579 50 -0.12 47
IV.GUMA.HHZ. 2019-12-30T23:21:38.20 0.3 undecidable manual S 16 0.2932 50 0.29 70
IV.CESI.HHZ. 2019-12-30T23:21:38.90 0.3 undecidable manual S 314 0.3247 50 0.07 72
IV.CSP1.EHZ. 2019-12-30T23:21:38.20 0.3 undecidable manual S 357 0.3112 50 -0.25 70
IV.MF5.EHN. 2019-12-30T23:21:37.80 0.6 undecidable manual S 40 0.2698 50 0.6 43
IV.RM33.EHZ. 2019-12-30T23:21:37.40 0.6 undecidable manual S 182 0.2716 50 0.14 48
IV.FDMO.HHZ. 2019-12-30T23:21:37.10 0.3 undecidable manual S 339 0.2752 50 -0.26 70
IV.LNSS.HHZ. 2019-12-30T23:21:36.10 0.6 undecidable manual S 217 0.223 50 0.27 47
IT.MTCL.HGZ. 2019-12-30T23:21:36.80 0.3 undecidable manual S 322 0.2698 50 -0.41 68
IV.ASSB.HHZ. 2019-12-30T23:21:36.58 0.1 undecidable manual P 303 0.4901 50 0.06 94
IV.FEMA.HNE. 2019-12-30T23:21:35.70 0.3 undecidable manual S 325 0.2221 50 -0.1 73
IV.MNTT.EHZ. 2019-12-30T23:21:35.34 0.1 undecidable manual P 44 0.3912 50 0.52 86
IV.MML1.HNE. 2019-12-30T23:21:34.53 0.1 undecidable manual P 331 0.3813 50 -0.12 94
IV.GIGS.HHZ. 2019-12-30T23:21:34.64 0.3 undecidable manual P 142 0.4155 50 -0.6 62
IV.SAP2.EHE. 2019-12-30T23:21:34.16 0.3 undecidable manual P 22 0.3408 50 0.19 70
IV.OFFI.HHE. 2019-12-30T23:21:34.96 0.3 undecidable manual P 65 0.3714 50 0.47 66
IV.MNTP.HNZ. 2019-12-30T23:21:34.78 1.0 undecidable manual P 27 0.3993 50 -0.18 23
IV.CSP1.EHZ. 2019-12-30T23:21:33.16 0.1 positive manual P 357 0.3112 50 -0.31 92
IV.MC2.EHZ. 2019-12-30T23:21:33.10 0.6 undecidable manual S 349 0.1331 126 0.12 50
IV.PF6.EHN. 2019-12-30T23:21:33.84 0.1 positive manual P 356 0.3579 50 -0.41 89
IV.GUMA.HHZ. 2019-12-30T23:21:33.11 0.1 positive manual P 16 0.2932 50 -0.05 98
IV.CESI.HHZ. 2019-12-30T23:21:33.60 0.1 undecidable manual P 314 0.3247 50 -0.08 96
IV.SMA1.EHZ. 2019-12-30T23:21:33.80 0.6 undecidable manual S 151 0.17 119 -0.38 47
IV.T1299.HNN. 2019-12-30T23:21:33.90 0.1 undecidable manual S 164 0.152 122 0.32 95
IV.FDMO.HHZ. 2019-12-30T23:21:32.53 0.1 positive manual P 339 0.2752 50 -0.31 93
IV.NRCA.HHZ. 2019-12-30T23:21:32.10 0.6 undecidable manual S 303 0.0971 135 0.2 49
IV.MMO1.EHZ. 2019-12-30T23:21:32.80 0.6 undecidable manual S 32 0.1403 124 -0.4 47
IV.MF5.EHN. 2019-12-30T23:21:32.70 0.1 positive manual P 40 0.2698 50 -0.04 98
IV.LNSS.HHZ. 2019-12-30T23:21:32.03 0.1 positive manual P 217 0.223 50 0.08 98
IV.RM33.EHZ. 2019-12-30T23:21:32.74 0.1 positive manual P 182 0.2716 50 -0.04 98
IV.MTRA.HNZ. 2019-12-30T23:21:32.50 0.6 undecidable manual S 101 0.1286 127 -0.32 48
IT.MTCL.HGZ. 2019-12-30T23:21:32.54 0.1 undecidable manual P 322 0.2698 50 -0.21 95
IV.FEMA.HNE. 2019-12-30T23:21:31.94 0.3 undecidable manual P 325 0.2221 50 0 75
IV.MTRA.HNZ. 2019-12-30T23:21:30.11 0.1 negative manual P 101 0.1286 127 -0.1 100
IV.T1299.HNN. 2019-12-30T23:21:30.87 0.1 positive manual P 164 0.152 122 0.22 97
IV.MC2.EHZ. 2019-12-30T23:21:30.44 0.1 positive manual P 349 0.1331 126 0.13 99
IV.MMO1.EHZ. 2019-12-30T23:21:30.24 0.1 positive manual P 32 0.1403 124 -0.19 97
IV.SMA1.EHZ. 2019-12-30T23:21:30.96 0.1 positive manual P 151 0.17 119 -0.04 100
IV.NRCA.HHZ. 2019-12-30T23:21:29.97 0.1 positive manual P 303 0.0971 135 0.29 96
IV.APEC.HHZ. 2019-12-30T23:21:28.57 3.0 undecidable manual S -0.82 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.7 0.000549 0.12 AML other m 2019-12-30T23:21:32.33
IV.NRCA.HHE. ML:1.6 0.000432 0.56 AML other m 2019-12-30T23:21:32.70
IV.MTRA.EHN. ML:1.3 0.0002155 0.58 AML other m 2019-12-30T23:21:33.65
IV.SMA1.EHE. ML:1.9 0.000608 0.22 AML other m 2019-12-30T23:21:34.30
IV.SMA1.EHN. ML:1.7 0.0003945 1.5 AML other m 2019-12-30T23:21:34.82
IV.LNSS.HHN. ML:1.8 0.00035 0.18 AML other m 2019-12-30T23:21:36.67
IV.MTRA.EHE. ML:1.2 0.0001715 0.58 AML other m 2019-12-30T23:21:36.79
IV.LNSS.HHE. ML:1.6 0.000212 1.14 AML other m 2019-12-30T23:21:37.16
IV.RM33.EHN. ML:1.5 0.0001515 0.24 AML other m 2019-12-30T23:21:37.69
IV.FDMO.HHN. ML:1.6 0.000165 0.18 AML other m 2019-12-30T23:21:37.86
IV.RM33.EHE. ML:1.6 0.000189 1.86 AML other m 2019-12-30T23:21:38.03
IV.FDMO.HHE. ML:1.5 0.0001375 0.6 AML other m 2019-12-30T23:21:38.21
IV.CESI.HHN. ML:1.6 0.000158 0.44 AML other m 2019-12-30T23:21:39.41
IV.CESI.HHE. ML:1.6 0.0001575 1.58 AML other m 2019-12-30T23:21:44.04
IV.MAON.HNN. ML:3 0.0003695 0.42 AML other m 2019-12-30T23:21:58.39
IV.MAON.HNE. ML:3.1 0.0004945 0.92 AML other m 2019-12-30T23:21:58.54
IV.FIR.HHE. ML:2.9 0.000245 0.62 AML other m 2019-12-30T23:21:58.86
IV.FIR.HHN. ML:2.8 0.0002175 0.52 AML other m 2019-12-30T23:22:06.32
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download