Earthquake with magnitude of ML 0.9 on date 20-05-2022 and time 02:52:33 (Italy) in region 1 km E Prata d'Ansidonia (AQ)

A magnitude ML 0.9 earthquake occured in region: 1 km E Prata d'Ansidonia (AQ), on

  • 20-05-2022 00:52:33 (UTC)
  • 20-05-2022 02:52:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2790, 13.6160 at 8 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
Prata d'Ansidonia AQ 1 496 496
San Pio delle Camere AQ 3 661 1157
Fagnano Alto AQ 4 418 1575
San Demetrio ne' Vestini AQ 5 1854 3429
Fontecchio AQ 5 369 3798
Caporciano AQ 5 230 4028
Barisciano AQ 6 1828 5856
Carapelle Calvisio AQ 6 87 5943
Villa Sant'Angelo AQ 7 424 6367
Castelvecchio Calvisio AQ 7 153 6520
Santo Stefano di Sessanio AQ 8 111 6631
Sant'Eusanio Forconese AQ 8 394 7025
Poggio Picenze AQ 8 1136 8161
Calascio AQ 8 137 8298
Tione degli Abruzzi AQ 8 310 8608
Navelli AQ 11 554 9162
Fossa AQ 11 721 9883
Rocca di Mezzo AQ 11 1526 11409
Rocca di Cambio AQ 11 533 11942
Ocre AQ 12 1167 13109
Capestrano AQ 13 884 13993
Ofena AQ 13 506 14499
Castel del Monte AQ 13 413 14912
Acciano AQ 14 327 15239
Villa Santa Lucia degli Abruzzi AQ 15 123 15362
Secinaro AQ 15 359 15721
Collepietro AQ 15 237 15958
San Benedetto in Perillis AQ 17 113 16071
Molina Aterno AQ 18 386 16457
Ovindoli AQ 18 1227 17684
Gagliano Aterno AQ 18 254 17938
Castelvecchio Subequo AQ 19 982 18920
Bussi sul Tirino PE 19 2518 21438
L'Aquila AQ 20 69753 91191

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of L'Aquila (69753 inhabitants)
43 Km S of Teramo (54892 inhabitants)
46 Km W of Chieti (51815 inhabitants)
51 Km SW of Montesilvano (53738 inhabitants)
53 Km W of Pescara (121014 inhabitants)
76 Km E of Tivoli (56533 inhabitants)
80 Km E of Guidonia Montecelio (88673 inhabitants)
86 Km E of Terni (111501 inhabitants)
96 Km NE of Velletri (53303 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.9 2022-05-20
00:52:33
42.2787 13.6162 9 2022-05-20
00:58:48
Sala Sismica INGV-Roma 104889041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-20 00:52:33 ± 0.15
Latitude 42.2787 ± 0.0081
Longitude 13.6162 ± 0.0122
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 104889041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1040
Semi-minor axis of confidence ellipse (meter) 622
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.66640
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 104889041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-20 00:58:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2022-05-20T00:52:58.07 3.0 undecidable manual S 326 0.6664 50 1.38 0
IV.SMA1.EHZ. 2022-05-20T00:52:49.71 0.6 undecidable manual S 330 0.4083 50 0.67 39
IV.INTR.HHZ. 2022-05-20T00:52:47.70 0.6 undecidable manual S 141 0.3417 50 0.62 41
IV.TERO.HHZ. 2022-05-20T00:52:46.44 0.6 undecidable manual S 358 0.3444 50 -0.7 39
IV.NRCA.HHZ. 2022-05-20T00:52:46.85 1.0 positive manual P 326 0.6664 50 -0.21 21
IV.GIGS.HHZ. 2022-05-20T00:52:42.02 0.6 undecidable manual S 350 0.1772 113 0.68 41
IV.SMA1.EHZ. 2022-05-20T00:52:42.11 1.0 undecidable manual P 330 0.4083 50 -0.53 21
IV.INTR.HHZ. 2022-05-20T00:52:41.08 0.6 undecidable manual P 141 0.3417 50 -0.43 43
IV.VCEL.EHZ. 2022-05-20T00:52:41.86 0.6 undecidable manual S 55 0.2023 111 -0.37 45
IV.TERO.HHZ. 2022-05-20T00:52:40.95 1.0 undecidable manual P 358 0.3444 50 -0.6 21
IV.T0110.HHZ. 2022-05-20T00:52:39.70 0.6 undecidable manual S 112 0.1286 121 0.05 49
IV.GIGS.HHZ. 2022-05-20T00:52:38.16 1.0 undecidable manual P 350 0.1772 113 -0.04 24
IV.VCEL.EHZ. 2022-05-20T00:52:38.94 0.1 undecidable manual P 55 0.2023 111 0.23 93
IV.T0110.HHZ. 2022-05-20T00:52:37.25 0.6 positive manual P 112 0.1286 121 0.03 49
IV.FAGN.HHZ. 2022-05-20T00:52:36.76 0.6 undecidable manual S 242 0.0270 160 -0.26 48
IV.FAGN.HHZ. 2022-05-20T00:52:35.68 0.1 negative manual P 242 0.0270 160 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T0110.HHE. ML:1.4 0.000262 0.54 AML other m 2022-05-20T00:52:40.29
IV.GIGS.HHN. ML:0.4 0.000018 0.92 AML other m 2022-05-20T00:52:41.26
IV.T0110.HHN. ML:1.3 0.000223 1.02 AML other m 2022-05-20T00:52:41.46
IV.VCEL.EHE. ML:1.4 0.00015200000000000004 0.9 AML other m 2022-05-20T00:52:44.38
IV.GIGS.HHE. ML:0.3 0.000017349999999999998 0.78 AML other m 2022-05-20T00:52:46.56
IV.VCEL.EHN. ML:1.2 0.0001028 1.26 AML other m 2022-05-20T00:52:46.10
IV.INTR.HHE. ML:0.8 0.00002385 0.22 AML other m 2022-05-20T00:52:48.27
IV.TERO.HHE. ML:0.8 0.00002295 1.38 AML other m 2022-05-20T00:52:48.76
IV.TERO.HHN. ML:0.7 0.000017500000000000002 0.44 AML other m 2022-05-20T00:52:49.65
IV.SMA1.EHE. ML:0.8 0.000019849999999999998 0.62 AML other m 2022-05-20T00:52:54.53
IV.SMA1.EHN. ML:0.8 0.00002235 1.34 AML other m 2022-05-20T00:52:54.02
IV.INTR.HHN. ML:1.0 0.00003525 1.38 AML other m 2022-05-20T00:53:00.15
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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