Earthquake with magnitude of ML 1.1 on date 20-01-2022 and time 01:52:14 (UTC) in region 1 km N Vastogirardi (IS)

A magnitude ML 1.1 earthquake occured in region: 1 km N Vastogirardi (IS), on

  • 20-01-2022 01:52:14 (UTC)
  • 20-01-2022 02:52:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7820, 14.2590 at 22 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
Vastogirardi IS 1 704 704
Capracotta IS 6 903 1607
San Pietro Avellana IS 6 503 2110
Carovilli IS 8 1359 3469
Castel del Giudice IS 9 346 3815
Agnone IS 9 5139 8954
Roccasicura IS 10 550 9504
Ateleta AQ 10 1181 10685
Pescopennataro IS 11 285 10970
Sant'Angelo del Pesco IS 11 364 11334
Pietrabbondante IS 11 759 12093
Forlì del Sannio IS 12 675 12768
Castelverrino IS 12 115 12883
Castel di Sangro AQ 12 6538 19421
Rionero Sannitico IS 13 1118 20539
Poggio Sannita IS 13 702 21241
Pescolanciano IS 13 855 22096
Gamberale CH 14 320 22416
Belmonte del Sannio IS 15 768 23184
Acquaviva d'Isernia IS 15 425 23609
Rosello CH 15 237 23846
Miranda IS 15 1047 24893
Chiauci IS 16 233 25126
Pizzoferrato CH 16 1130 26256
Borrello CH 16 354 26610
Quadri CH 16 815 27425
Roccaraso AQ 17 1627 29052
Sessano del Molise IS 17 727 29779
Roio del Sangro CH 17 103 29882
Civitanova del Sannio IS 18 945 30827
Montenero Val Cocchiara IS 18 538 31365
Fallo CH 18 139 31504
Civitaluparella CH 19 351 31855
Scontrone AQ 19 574 32429
Castiglione Messer Marino CH 19 1790 34219
Rivisondoli AQ 19 700 34919
Bagnoli del Trigno IS 19 735 35654
Pesche IS 19 1661 37315
Cerro al Volturno IS 19 1281 38596
Schiavi di Abruzzo CH 19 860 39456
Alfedena AQ 19 864 40320

Municipalities with at least 50000 inhabitants

An earthquake occurred to
64 Km S of Chieti (51815 inhabitants)
76 Km S of Pescara (121014 inhabitants)
79 Km N of Caserta (76326 inhabitants)
82 Km S of Montesilvano (53738 inhabitants)
85 Km NW of Benevento (60091 inhabitants)
90 Km N of Aversa (53047 inhabitants)
93 Km N of Acerra (59573 inhabitants)
94 Km W of San Severo (53905 inhabitants)
95 Km N of Giugliano in Campania (122974 inhabitants)
95 Km SE of L'Aquila (69753 inhabitants)
96 Km N of Afragola (65057 inhabitants)
97 Km N of Casoria (77642 inhabitants)
98 Km N of Marano di Napoli (59874 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 1.1 2022-01-20
01:52:14
41.7825 14.2592 22 2022-01-20
01:59:10
Sala Sismica INGV-Roma 99958271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-20 01:52:14 ± 0.65
Latitude 41.7825 ± 0.0405
Longitude 14.2592 ± 0.0712
Depth (km) 22 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 99958271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 6940
Semi-minor axis of confidence ellipse (meter) 2493
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) 6940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34894
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 99958271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-20 01:59:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OT.OT17.EHZ. 2022-01-20T01:52:29.47 3.0 positive manual P -0.67 0
IV.INTR.HHZ. 2022-01-20T01:52:27.64 0.3 undecidable manual S 311 0.3489 112 -0.17 73
IV.SACR.HHZ. 2022-01-20T01:52:26.71 3.0 positive manual P 0.65 0
IV.PTRJ.HHZ. 2022-01-20T01:52:26.33 3.0 undecidable manual P 0.52 0
IV.INTR.HHZ. 2022-01-20T01:52:22.16 0.1 undecidable manual P 311 0.3489 112 0.01 100
IV.RNI2.HHZ. 2022-01-20T01:52:22.77 0.6 undecidable manual S 225 0.1124 147 0.56 48
IV.MIDA.HHZ. 2022-01-20T01:52:22.13 0.6 undecidable manual S 182 0.1403 140 -0.58 45
IV.RNI2.HHZ. 2022-01-20T01:52:19.15 0.6 positive manual P 225 0.1124 147 0.24 50
IV.MIDA.HHZ. 2022-01-20T01:52:19.26 0.6 positive manual P 182 0.1403 140 0.06 52
IV.TST01.HHZ. 2022-01-20T01:52:18.68 1.0 negative manual P 109 0.1007 150 -0.13 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MIDA.HHE. ML:1.1 0.00007085 0.14 AML other m 2022-01-20T01:52:23.42
IV.MIDA.HHN. ML:1.2 0.00008615000000000001 1.38 AML other m 2022-01-20T01:52:23.95
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