Earthquake with magnitude of ML 2.2 on date 04-08-2020 and time 07:53:38 (Italy) in region 1 km NW San Demetrio ne' Vestini (AQ)

A magnitude ML 2.2 earthquake occured in region: 1 km NW San Demetrio ne' Vestini (AQ), on

  • 04-08-2020 05:53:38 (UTC)
  • 04-08-2020 07:53:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3, 13.55 at 10 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
San Demetrio ne' Vestini AQ 1 1854 1854
Poggio Picenze AQ 3 1136 2990
Sant'Eusanio Forconese AQ 3 394 3384
Villa Sant'Angelo AQ 3 424 3808
Barisciano AQ 4 1828 5636
Prata d'Ansidonia AQ 5 496 6132
Fagnano Alto AQ 5 418 6550
Fossa AQ 5 721 7271
Ocre AQ 7 1167 8438
San Pio delle Camere AQ 9 661 9099
Rocca di Cambio AQ 9 533 9632
Fontecchio AQ 9 369 10001
Santo Stefano di Sessanio AQ 9 111 10112
Rocca di Mezzo AQ 11 1526 11638
Carapelle Calvisio AQ 11 87 11725
Caporciano AQ 11 230 11955
Castelvecchio Calvisio AQ 11 153 12108
Calascio AQ 12 137 12245
Tione degli Abruzzi AQ 13 310 12555
L'Aquila AQ 14 69753 82308
Castel del Monte AQ 16 413 82721
Navelli AQ 16 554 83275
Ofena AQ 17 506 83781
Lucoli AQ 18 1011 84792
Capestrano AQ 18 884 85676
Ovindoli AQ 19 1227 86903
Villa Santa Lucia degli Abruzzi AQ 19 123 87026
Acciano AQ 19 327 87353
Secinaro AQ 19 359 87712

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of L'Aquila (69753 inhabitants)
42 Km SW of Teramo (54892 inhabitants)
51 Km W of Chieti (51815 inhabitants)
55 Km W of Montesilvano (53738 inhabitants)
57 Km W of Pescara (121014 inhabitants)
73 Km NE of Tivoli (56533 inhabitants)
76 Km E of Guidonia Montecelio (88673 inhabitants)
80 Km E of Terni (111501 inhabitants)
94 Km NE of Velletri (53303 inhabitants)
99 Km E of Roma (2864731 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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
Bulletin
Rev1000
ML 2.2 2020-08-04
05:53:38
42.3 13.55 10 2020-11-19
12:36:56
Bollettino Sismico Italiano INGV 81675631
Reviewed
Rev100
ML 2.2 2020-08-04
05:53:38
42.3 13.54 8 2020-08-04
06:09:36
Sala Sismica INGV-Roma 81627781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-04 05:53:38 ± 0.07
Latitude 42.30 ± 0.00
Longitude 13.55 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81675631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 450
Semi-minor axis of confidence ellipse (meter) 261
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.08188
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 81675631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-05 13:43:08

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 81627781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-04 06:09:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-08-04T05:54:05.97 0.6 undecidable manual S 342 0.8328 50 0.07 44
IV.NRCA.HHZ. 2020-08-04T05:54:00.16 0.3 undecidable manual S 329 0.6241 50 0.43 63
IV.EL6.EHZ. 2020-08-04T05:53:58.76 0.3 undecidable manual P 342 1.0819 50 0.19 60
IV.LPEL.HHZ. 2020-08-04T05:53:57.34 0.3 undecidable manual S 118 0.5297 50 0.41 65
IV.MTRA.EHZ. 2020-08-04T05:53:55.74 0.3 undecidable manual S 346 0.4712 50 0.54 64
IV.CSP1.EHZ. 2020-08-04T05:53:54.27 0.1 undecidable manual P 342 0.8328 50 -0.04 88
IV.INTR.HHZ. 2020-08-04T05:53:53.30 0.3 undecidable manual S 138 0.3876 50 0.59 63
IV.SMA1.EHZ. 2020-08-04T05:53:52.37 0.3 undecidable manual S 334 0.3678 50 0.23 70
IV.RM33.EHZ. 2020-08-04T05:53:51.34 0.3 undecidable manual S 310 0.3265 50 0.43 67
IV.NRCA.HHZ. 2020-08-04T05:53:50.57 0.1 undecidable manual P 329 0.6241 50 -0.18 89
IV.FIAM.HHZ. 2020-08-04T05:53:50.93 0.1 undecidable manual S 265 0.3247 50 0.08 97
IV.TERO.HHN. 2020-08-04T05:53:50.45 0.1 undecidable manual S 6 0.3256 50 -0.42 90
IV.PTQR.HHZ. 2020-08-04T05:53:49.77 0.3 undecidable manual S 202 0.2995 50 -0.34 69
IV.LPEL.HHZ. 2020-08-04T05:53:49.24 0.1 undecidable manual P 118 0.5297 50 0.11 92
IV.VCEL.EHZ. 2020-08-04T05:53:48.19 0.3 undecidable manual S 66 0.232 111 0.16 73
IV.CAMP.HHZ. 2020-08-04T05:53:48.96 0.3 undecidable manual S 336 0.259 50 0.04 74
IV.MTRA.EHZ. 2020-08-04T05:53:48.01 0.1 undecidable manual P 346 0.4712 50 -0.13 93
IV.VVLD.HHZ. 2020-08-04T05:53:47.04 0.3 undecidable manual P 173 0.4326 50 -0.43 66
IV.SMA1.EHZ. 2020-08-04T05:53:46.15 0.3 undecidable manual P 334 0.3678 50 -0.22 70
IV.INTR.HHZ. 2020-08-04T05:53:46.56 0.1 undecidable manual P 138 0.3876 50 -0.14 94
IV.T0110.HHZ. 2020-08-04T05:53:46.59 0.3 undecidable manual S 113 0.179 116 0.45 69
IV.TERO.HHN. 2020-08-04T05:53:45.19 0.1 undecidable manual P 6 0.3256 50 -0.44 90
IV.RM33.EHZ. 2020-08-04T05:53:45.59 0.1 undecidable manual P 310 0.3265 50 -0.07 97
IV.GIGS.HHZ. 2020-08-04T05:53:45.00 0.3 undecidable manual S 5 0.1547 120 -0.32 71
IV.FIAM.HHZ. 2020-08-04T05:53:45.61 0.1 undecidable manual P 265 0.3247 50 -0.01 98
IV.PTQR.HHZ. 2020-08-04T05:53:44.93 0.1 undecidable manual P 202 0.2995 50 -0.27 94
MN.AQU.HNN. 2020-08-04T05:53:44.74 0.1 undecidable manual S 296 0.1232 125 0.44 93
IV.CAMP.HHZ. 2020-08-04T05:53:44.24 0.1 undecidable manual P 336 0.259 50 -0.27 94
IV.T0110.HHZ. 2020-08-04T05:53:43.07 0.1 undecidable manual P 113 0.179 116 0.17 98
IV.VCEL.EHZ. 2020-08-04T05:53:43.99 0.1 undecidable manual P 66 0.232 111 0 100
IV.GIGS.HHZ. 2020-08-04T05:53:42.20 0.1 undecidable manual P 5 0.1547 120 -0.23 97
MN.AQU.HNN. 2020-08-04T05:53:42.16 0.1 undecidable manual P 296 0.1232 125 0.32 96
IV.SULP.HGZ. 2020-08-04T05:53:42.76 3.0 undecidable manual P 0
IV.FAGN.HHN. 2020-08-04T05:53:40.18 0.1 undecidable manual P 147 0.0405 155 -0.44 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T0110.HHN. ML:2.5 0.00262 0.36 AML other m 2020-08-04T05:53:47.50
IV.VCEL.EHN. ML:2.5 0.001915 1.02 AML other m 2020-08-04T05:53:50.79
IV.VCEL.EHE. ML:2.5 0.00188 0.58 AML other m 2020-08-04T05:53:51.19
IV.T0110.HHE. ML:2.4 0.002065 0.5 AML other m 2020-08-04T05:53:52.03
IV.FIAM.HHE. ML:2 0.000438 0.56 AML other m 2020-08-04T05:53:52.29
IV.PTQR.HHN. ML:1.8 0.0002915 0.58 AML other m 2020-08-04T05:53:53.33
IV.RM33.EHN. ML:2.3 0.000709 0.38 AML other m 2020-08-04T05:53:54.37
IV.RM33.HNN. ML:2.3 0.000701 0.4 AML other m 2020-08-04T05:53:54.37
IV.PTQR.HHE. ML:1.9 0.0003305 0.6 AML other m 2020-08-04T05:53:54.82
IV.CAMP.HHE. ML:2.1 0.0007165 0.62 AML other m 2020-08-04T05:53:55.93
IV.RM33.HNE. ML:2.3 0.000881 0.42 AML other m 2020-08-04T05:53:55.71
IV.RM33.EHE. ML:2.3 0.000854 0.42 AML other m 2020-08-04T05:53:55.72
IV.MTRA.HNN. ML:2.3 0.0004755 0.72 AML other m 2020-08-04T05:53:57.17
IV.CAMP.HHN. ML:2.2 0.000759 1.18 AML other m 2020-08-04T05:53:58.36
IV.LPEL.HHN. ML:2.2 0.000306 1.56 AML other m 2020-08-04T05:53:59.96
IV.LPEL.HHE. ML:2.2 0.0003215 0.22 AML other m 2020-08-04T05:54:00.53
IV.NRCA.HHN. ML:2.3 0.0003295 0.16 AML other m 2020-08-04T05:54:00.69
IV.MTRA.EHE. ML:2.2 0.00044 0.28 AML other m 2020-08-04T05:54:00.89
IV.MTRA.HNE. ML:2.3 0.000465 0.3 AML other m 2020-08-04T05:54:00.89
IV.NRCA.HHE. ML:2.5 0.0005895 1.82 AML other m 2020-08-04T05:54:01.92
IV.SMA1.EHN. ML:2.2 0.000544 1.6 AML other m 2020-08-04T05:54:01.82
IV.INTR.HHE. ML:2.1 0.000431 0.88 AML other m 2020-08-04T05:54:01.33
IV.INTR.HNE. ML:2.1 0.0004385 0.84 AML other m 2020-08-04T05:54:01.36
IV.SMA1.EHE. ML:2.2 0.0006335 0.66 AML other m 2020-08-04T05:54:02.15
IV.INTR.HNN. ML:2.2 0.000517 1.08 AML other m 2020-08-04T05:54:03.28
IV.INTR.HHN. ML:2.2 0.0005335 1 AML other m 2020-08-04T05:54:03.30
IV.MTRA.EHN. ML:2.2 0.000425 0.5 AML other m 2020-08-04T05:54:03.67
IV.FIAM.HHN. ML:1.9 0.00033 0.76 AML other m 2020-08-04T05:54:04.07
IV.CSP1.EHE. ML:2 0.0001175 0.58 AML other m 2020-08-04T05:54:15.28
IV.CSP1.EHN. ML:2 9.94E-5 1.12 AML other m 2020-08-04T05:54:24.81
IV.EL6.EHN. ML:2.3 0.00013945 0.62 AML other m 2020-08-04T05:54:35.57
IV.EL6.EHE. ML:2.2 0.0001305 0.58 AML other m 2020-08-04T05:54:39.44
IX.MNT3.HHE.02 ML:0 0.000385 0.16 AML other m 2020-08-04T05:54:40.23
IX.MNT3.HHN.02 ML:0 0.0003345 0.88 AML other m 2020-08-04T05:54:40.83
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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