Earthquake with magnitude of ML 1.8 on date 20-09-2019 and time 06:08:44 (Italy) in region 5 km SE Antrodoco (RI)

A magnitude ML 1.8 earthquake occured in region: 5 km SE Antrodoco (RI), on

  • 20-09-2019 04:08:44 (UTC)
  • 20-09-2019 06:08:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.39, 13.13 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Antrodoco RI 5 2588 2588
Borgo Velino RI 6 972 3560
Castel Sant'Angelo RI 8 1308 4868
Micigliano RI 9 127 4995
Scoppito AQ 11 3727 8722
Cagnano Amiterno AQ 11 1369 10091
Petrella Salto RI 12 1197 11288
Borbona RI 14 617 11905
Fiamignano RI 14 1413 13318
Concerviano RI 14 291 13609
Barete AQ 14 737 14346
Pizzoli AQ 15 4326 18672
Cittaducale RI 15 6828 25500
Posta RI 15 694 26194
Montereale AQ 18 2581 28775
Tornimparte AQ 18 3187 31962
Longone Sabino RI 19 597 32559
Varco Sabino RI 19 187 32746
Marcetelli RI 19 89 32835

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km W of L'Aquila (69753 inhabitants)
44 Km E of Terni (111501 inhabitants)
55 Km NE of Guidonia Montecelio (88673 inhabitants)
55 Km NE of Tivoli (56533 inhabitants)
56 Km SW of Teramo (54892 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
77 Km NE of Roma (2864731 inhabitants)
83 Km NE of Velletri (53303 inhabitants)
84 Km E of Viterbo (67173 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
85 Km W of Chieti (51815 inhabitants)
89 Km W of Pescara (121014 inhabitants)
95 Km NE of Pomezia (62966 inhabitants)
97 Km NE of Aprilia (73446 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.8 2019-09-20
04:08:44
42.39 13.13 11 2019-09-20
04:18:09
Sala Sismica INGV-Roma 72576661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-20 04:08:44 ± 0.04
Latitude 42.39 ± 0.00
Longitude 13.13 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72576661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 329
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.45416
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 72576661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-20 04:18:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-09-20T04:09:17.27 3.0 undecidable manual S 0.49 0
IV.CSP1.EHZ. 2019-09-20T04:09:09.37 3.0 undecidable manual S 0.24 0
IV.FDMO.HHZ. 2019-09-20T04:09:06.79 3.0 undecidable manual S -0.4 0
IV.MC2.EHZ. 2019-09-20T04:09:03.10 3.0 undecidable manual S -0.1 0
IV.MMO1.EHZ. 2019-09-20T04:09:03.23 3.0 undecidable manual S -0.31 0
IV.MNTT.EHZ. 2019-09-20T04:09:00.35 3.0 negative manual P 1 0
IV.CERT.HHZ. 2019-09-20T04:09:00.52 0.6 undecidable manual S 194 0.4542 50 0.12 47
IV.SNTG.HHZ. 2019-09-20T04:08:58.23 3.0 undecidable manual P -3.15 0
IV.GAVE.EHZ. 2019-09-20T04:08:57.19 0.6 undecidable manual S 330 0.3489 50 -0.09 48
IV.CSP1.EHZ. 2019-09-20T04:08:57.95 3.0 negative manual P -0.32 0
IV.MF5.EHZ. 2019-09-20T04:08:57.31 3.0 negative manual P 0.01 0
IV.ARRO.EHZ. 2019-09-20T04:08:56.84 0.6 undecidable manual S 305 0.3292 50 0.15 48
IV.FDMO.HHZ. 2019-09-20T04:08:56.98 3.0 negative manual P -0.2 0
IV.T0110.HHZ. 2019-09-20T04:08:55.70 3.0 negative manual P 0.47 0
IV.SMA1.EHZ. 2019-09-20T04:08:55.50 0.3 undecidable manual S 32 0.2842 50 0.13 72
IV.CAMP.HHZ. 2019-09-20T04:08:54.25 0.6 undecidable manual S 55 0.2518 50 -0.17 48
IV.MMO1.EHZ. 2019-09-20T04:08:54.81 3.0 positive manual P -0.32 0
IV.CESX.HHZ. 2019-09-20T04:08:53.94 3.0 negative manual P 0.36 0
IV.NRCA.HHZ. 2019-09-20T04:08:53.35 3.0 negative manual P -0.09 0
IV.LNSS.HHZ. 2019-09-20T04:08:53.63 0.6 undecidable manual S 343 0.223 50 0.07 49
IV.CERT.HHZ. 2019-09-20T04:08:53.40 0.6 undecidable manual P 194 0.4542 50 -0.27 45
IV.FAGN.HHZ. 2019-09-20T04:08:52.88 3.0 negative manual P 0.34 0
IV.TERO.HHZ. 2019-09-20T04:08:52.89 3.0 positive manual P -0.52 0
IV.ARRO.EHZ. 2019-09-20T04:08:51.40 0.3 positive manual P 305 0.3292 50 -0.13 72
IV.GAVE.EHZ. 2019-09-20T04:08:51.87 1.0 undecidable manual P 330 0.3489 50 0 24
IV.CAMP.HHZ. 2019-09-20T04:08:50.24 0.6 negative manual P 55 0.2518 50 0.02 50
IV.RM33.EHZ. 2019-09-20T04:08:50.75 0.6 undecidable manual S 27 0.134 126 -0.16 49
IV.SMA1.EHZ. 2019-09-20T04:08:50.81 0.1 positive manual P 32 0.2842 50 0.04 98
IV.FIAM.HHZ. 2019-09-20T04:08:50.48 0.6 undecidable manual S 185 0.1223 129 -0.05 51
IV.LNSS.HHZ. 2019-09-20T04:08:49.68 0.1 negative manual P 343 0.223 50 -0.04 99
IV.FIAM.HHZ. 2019-09-20T04:08:48.10 0.3 positive manual P 185 0.1223 129 0.13 75
IV.RM33.EHZ. 2019-09-20T04:08:48.28 0.1 negative manual P 27 0.134 126 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:1.8 0.00063 0.4 AML other m 2019-09-20T04:08:50.84
IV.RM33.HNE. ML:2.2 0.00161 0.3 AML other m 2019-09-20T04:08:51.02
IV.RM33.EHE. ML:2.2 0.00164 0.3 AML other m 2019-09-20T04:08:51.02
IV.RM33.HNN. ML:2.1 0.00106 0.76 AML other m 2019-09-20T04:08:51.61
IV.RM33.EHN. ML:2.1 0.001075 1.36 AML other m 2019-09-20T04:08:51.91
IV.FIAM.HHE. ML:1.7 0.000481 0.28 AML other m 2019-09-20T04:08:51.75
IV.LNSS.HHE. ML:1.8 0.000376 0.5 AML other m 2019-09-20T04:08:53.73
IV.LNSS.HHN. ML:1.8 0.000327 0.8 AML other m 2019-09-20T04:08:54.01
IV.CAMP.HHN. ML:1.4 0.000139 0.38 AML other m 2019-09-20T04:08:54.64
IV.CAMP.HHE. ML:1.3 0.0001085 0.86 AML other m 2019-09-20T04:08:54.91
IV.SMA1.EHN. ML:1.9 0.0003375 1.42 AML other m 2019-09-20T04:08:55.06
IV.SMA1.EHE. ML:2 0.00054 1.46 AML other m 2019-09-20T04:08:55.09
IV.ARRO.EHN. ML:1.5 0.00012235 0.18 AML other m 2019-09-20T04:08:57.51
IV.ARRO.EHE. ML:1.5 0.000122 0.54 AML other m 2019-09-20T04:08:57.82
IV.TERO.HHN. ML:1.7 0.00013 1.72 AML other m 2019-09-20T04:08:58.97
IV.TERO.HHE. ML:1.6 0.00011275 0.46 AML other m 2019-09-20T04:09:00.45
IV.NRCA.HHE. ML:2.3 0.0005615 0.12 AML other m 2019-09-20T04:09:00.87
IV.GAVE.EHN. ML:1.7 0.0001795 1.38 AML other m 2019-09-20T04:09:00.17
IV.FAGN.HHE. ML:2 0.0003395 0.42 AML other m 2019-09-20T04:09:01.05
IV.GAVE.EHE. ML:1.6 0.00016 0.24 AML other m 2019-09-20T04:09:01.27
IV.FAGN.HHN. ML:2 0.000353 1.52 AML other m 2019-09-20T04:09:01.87
IV.CESX.HHE. ML:1.4 6.645E-5 0.5 AML other m 2019-09-20T04:09:02.31
IV.CESX.HHN. ML:1.5 8.52E-5 0.48 AML other m 2019-09-20T04:09:02.73
IV.NRCA.HHN. ML:2.1 0.000346 0.12 AML other m 2019-09-20T04:09:02.88
IV.CERT.HHN. ML:1.3 4.89E-5 0.58 AML other m 2019-09-20T04:09:06.04
IV.CERT.HHE. ML:1.5 8.03E-5 1.54 AML other m 2019-09-20T04:09:08.14
IV.T0110.HHN. ML:1.8 0.0001277 1.68 AML other m 2019-09-20T04:09:09.86
IV.T0110.HHE. ML:1.8 0.000153 0.98 AML other m 2019-09-20T04:09:09.89
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