Earthquake with magnitude of ML 1.4 on date 22-09-2020 and time 01:40:08 (Italy) in region 4 km W Cagnano Amiterno (AQ)

A magnitude ML 1.4 earthquake occured in region: 4 km W Cagnano Amiterno (AQ), on

  • 21-09-2020 23:40:08 (UTC)
  • 22-09-2020 01:40:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.45, 13.18 at 13 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
Cagnano Amiterno AQ 4 1369 1369
Borbona RI 8 617 1986
Antrodoco RI 8 2588 4574
Barete AQ 9 737 5311
Micigliano RI 10 127 5438
Pizzoli AQ 10 4326 9764
Montereale AQ 10 2581 12345
Posta RI 11 694 13039
Borgo Velino RI 11 972 14011
Scoppito AQ 11 3727 17738
Capitignano AQ 13 665 18403
Castel Sant'Angelo RI 13 1308 19711
Cittareale RI 19 482 20193
Petrella Salto RI 19 1197 21390
Cittaducale RI 20 6828 28218

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of L'Aquila (69753 inhabitants)
45 Km E of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
62 Km NE of Guidonia Montecelio (88673 inhabitants)
62 Km NE of Tivoli (56533 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
82 Km W of Chieti (51815 inhabitants)
84 Km NE of Roma (2864731 inhabitants)
85 Km W of Pescara (121014 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
91 Km NE of Velletri (53303 inhabitants)
97 Km SE of Perugia (166134 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
Reviewed
Rev100
ML 1.4 2020-09-21
23:40:08
42.45 13.17 13 2020-09-22
00:08:42
Sala Sismica INGV-Roma 83118071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 23:40:08 ± 0.08
Latitude 42.45 ± 0.00
Longitude 13.17 ± 0.01
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83118071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 528
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 133
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.06655
Epicentral distance of station farthest from the epicenter (degree) 0.64302
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 83118071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-22 00:08:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-09-21T23:40:30.95 0.6 undecidable manual S 2 0.643 92 0.93 35
IV.FDMO.HHZ. 2020-09-21T23:40:28.92 0.3 undecidable manual S 354 0.5909 92 0.44 64
IV.MC2.EHZ. 2020-09-21T23:40:25.35 0.3 undecidable manual S 1 0.4623 92 0.67 60
IV.NRCA.HHZ. 2020-09-21T23:40:22.15 0.3 undecidable manual S 353 0.3867 93 -0.3 68
IV.ARRO.EHZ. 2020-09-21T23:40:20.54 0.6 undecidable manual S 293 0.3283 94 -0.17 47
IV.MTRA.EHZ. 2020-09-21T23:40:20.83 0.3 undecidable manual S 28 0.348 94 -0.47 66
IV.CSP1.EHZ. 2020-09-21T23:40:20.96 0.6 undecidable manual P 2 0.643 92 0.03 46
IV.FDMO.HHZ. 2020-09-21T23:40:19.84 0.3 undecidable manual P 354 0.5909 92 -0.2 67
IV.SMA1.EHZ. 2020-09-21T23:40:17.74 0.6 undecidable manual S 33 0.2167 98 0.32 47
IV.MC2.EHZ. 2020-09-21T23:40:17.77 0.3 undecidable manual P 1 0.4623 92 -0.07 70
IV.CAMP.HHZ. 2020-09-21T23:40:16.68 0.3 undecidable manual S 63 0.1934 101 -0.06 75
IV.NRCA.HHZ. 2020-09-21T23:40:16.26 0.3 undecidable manual P 353 0.3867 93 -0.3 68
IV.LNSS.HHZ. 2020-09-21T23:40:16.36 0.3 undecidable manual S 327 0.1826 102 -0.08 74
MN.AQU.HNZ. 2020-09-21T23:40:16.92 0.6 undecidable manual S 119 0.1952 100 0.14 48
IV.FIAM.HHZ. 2020-09-21T23:40:16.40 0.3 undecidable manual S 193 0.1862 102 -0.12 74
IV.T1299.HNZ. 2020-09-21T23:40:16.90 0.3 undecidable manual S 23 0.2014 100 -0.08 74
IV.MTRA.EHZ. 2020-09-21T23:40:15.48 0.3 undecidable manual P 28 0.348 94 -0.42 67
IV.TERO.HHZ. 2020-09-21T23:40:15.82 0.3 undecidable manual P 61 0.3606 93 -0.29 69
IV.ARRO.EHZ. 2020-09-21T23:40:15.62 0.3 undecidable manual P 293 0.3283 94 0.06 72
MN.AQU.HNZ. 2020-09-21T23:40:13.47 0.3 undecidable manual P 119 0.1952 100 0.18 72
IV.FIAM.HHZ. 2020-09-21T23:40:13.22 0.3 undecidable manual P 193 0.1862 102 0.08 74
IV.RM33.EHZ. 2020-09-21T23:40:13.38 0.3 undecidable manual S 26 0.0665 141 -0.08 77
IV.T1299.HNZ. 2020-09-21T23:40:13.44 0.1 undecidable manual P 23 0.2014 100 0.04 99
IV.CAMP.HHZ. 2020-09-21T23:40:13.24 0.1 undecidable manual P 63 0.1934 101 -0.02 100
IV.SMA1.EHZ. 2020-09-21T23:40:13.70 0.1 undecidable manual P 33 0.2167 98 0.05 99
IV.LNSS.HHZ. 2020-09-21T23:40:13.12 0.1 undecidable manual P 327 0.1826 102 0.03 100
IV.RM33.EHZ. 2020-09-21T23:40:11.53 0.1 undecidable manual P 26 0.0665 141 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:2.1 0.00155 0.24 AML other m 2020-09-21T23:40:13.66
IV.RM33.HNE. ML:2.1 0.001595 0.26 AML other m 2020-09-21T23:40:13.65
IV.RM33.HNN. ML:1.8 0.0007855 1.56 AML other m 2020-09-21T23:40:13.97
IV.RM33.EHN. ML:1.8 0.000752 1.56 AML other m 2020-09-21T23:40:13.98
IV.LNSS.HHE. ML:1.7 0.0003395 0.32 AML other m 2020-09-21T23:40:16.77
IV.SMA1.EHE. ML:1.5 0.000169 1.44 AML other m 2020-09-21T23:40:17.09
IV.SMA1.EHN. ML:1.3 0.000114 1.08 AML other m 2020-09-21T23:40:19.02
IV.MTRA.EHN. ML:1.3 6.35E-5 0.38 AML other m 2020-09-21T23:40:21.39
IV.NRCA.HHE. ML:1.7 0.0001655 0.14 AML other m 2020-09-21T23:40:22.50
IV.MOMA.HHE. ML:1 2.115E-5 1.3 AML other m 2020-09-21T23:40:30.76
IV.FDMO.HHE. ML:0 1.2652121E-5 0.2176 AML other m 2020-09-21T23:40:29.66
IV.FDMO.HHN. ML:0 9.423115E-6 1.4976 AML other m 2020-09-21T23:40:29.23
IV.LNSS.HHN. ML:1.6 0.00026055245 0.1024 AML other m 2020-09-21T23:40:16.98
IV.LNSS.HNE. ML:1.6 0.0002516302 0.128 AML other m 2020-09-21T23:40:16.77
IV.LNSS.HNN. ML:1.5 0.00021080915 0.1152 AML other m 2020-09-21T23:40:16.98
IV.CAMP.HHE. ML:0.5 2.1106185E-5 0.896 AML other m 2020-09-21T23:40:17.33
IV.CAMP.HHN. ML:0.8 4.1736355E-5 1.9328 AML other m 2020-09-21T23:40:17.04
IV.MTRA.HNE. ML:1.4 7.860071E-5 0.7424 AML other m 2020-09-21T23:40:20.75
IV.MTRA.HNN. ML:1.5 9.8879555E-5 0.3712 AML other m 2020-09-21T23:40:21.61
IV.MTRA.EHE. ML:1.2 4.790442E-5 1.3184 AML other m 2020-09-21T23:40:21.74
IV.ARRO.EHE. ML:1 3.660208E-5 0.2432 AML other m 2020-09-21T23:40:21.48
IV.ARRO.EHN. ML:0.9 2.9323965E-5 0.2048 AML other m 2020-09-21T23:40:21.98
IV.NRCA.HNE. ML:1.8 0.00018574645 0.2304 AML other m 2020-09-21T23:40:22.62
IV.NRCA.HNN. ML:1.6 0.00010859695 0.5632 AML other m 2020-09-21T23:40:22.21
IV.NRCA.HHN. ML:1.4 7.1083485E-5 0.1024 AML other m 2020-09-21T23:40:23.30
IV.CSP1.EHN. ML:1.5 4.766814E-5 3.072 AML other m 2020-09-21T23:40:32.29
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