Earthquake with magnitude of ML 1.8 on date 27-02-2022 and time 17:39:29 (UTC) in region 3 km SW Leonessa (RI)

A magnitude ML 1.8 earthquake occured in region: 3 km SW Leonessa (RI), on

  • 27-02-2022 17:39:29 (UTC)
  • 27-02-2022 18:39:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5430, 12.9330 at 10 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
Leonessa RI 3 2435 2435
Poggio Bustone RI 6 2055 4490
Rivodutri RI 7 1253 5743
Morro Reatino RI 8 373 6116
Cantalice RI 9 2755 8871
Polino TR 9 233 9104
Labro RI 11 374 9478
Monteleone di Spoleto PG 12 599 10077
Colli sul Velino RI 13 533 10610
Posta RI 14 694 11304
Arrone TR 14 2763 14067
Micigliano RI 14 127 14194
Ferentillo TR 15 1913 16107
Montefranco TR 15 1276 17383
Rieti RI 16 47698 65081
Greccio RI 17 1558 66639
Borbona RI 17 617 67256
Cittaducale RI 17 6828 74084
Castel Sant'Angelo RI 18 1308 75392
Borgo Velino RI 18 972 76364
Antrodoco RI 18 2588 78952
Poggiodomo PG 19 117 79069
Contigliano RI 20 3783 82852

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Terni (111501 inhabitants)
44 Km W of L'Aquila (69753 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
63 Km N of Guidonia Montecelio (88673 inhabitants)
65 Km W of Teramo (54892 inhabitants)
65 Km N of Tivoli (56533 inhabitants)
69 Km E of Viterbo (67173 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
81 Km NE of Roma (2864731 inhabitants)
96 Km N 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 1.8 2022-02-27
17:39:29
42.5428 12.9332 10 2022-02-27
17:46:38
Sala Sismica INGV-Roma 101517151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-27 17:39:29 ± 0.16
Latitude 42.5428 ± 0.0090
Longitude 12.9332 ± 0.0073
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 101517151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1038
Semi-minor axis of confidence ellipse (meter) 453
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
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) 186
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 16
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53869
Number of stations at which the event was observed 20
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 22
Type of magnitude ML
Reference to an origin 101517151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-02-27 17:46:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OX.MPRI.HHZ. 2022-02-27T17:41:17.61 3.0 undecidable manual Sg 10.27 0
IV.MSSA.HHZ. 2022-02-27T17:40:54.00 3.0 undecidable manual Sn 2.91 0
GU.CIRO.HHZ. 2022-02-27T17:40:50.67 3.0 undecidable manual Pg 13.02 0
IV.MOCL.EHZ. 2022-02-27T17:40:35.39 3.0 undecidable manual Sg 10.59 0
IV.MCRV.HHZ. 2022-02-27T17:40:24.93 3.0 undecidable manual Sg 5.61 0
IV.MSSA.HHZ. 2022-02-27T17:40:11.63 3.0 negative manual Pn -0.17 0
IV.PAOL.HHZ. 2022-02-27T17:40:04.44 3.0 undecidable manual Sn -2.81 0
IV.EL6.EHZ. 2022-02-27T17:39:57.41 3.0 undecidable manual S 0
IV.ASSB.HHZ. 2022-02-27T17:39:48.48 0.3 undecidable manual S 338 0.5387 50 0.54 64
IV.FDMO.HHZ. 2022-02-27T17:39:47.15 0.3 undecidable manual S 13 0.5063 50 0.17 70
IV.EL6.EHZ. 2022-02-27T17:39:46.94 3.0 undecidable manual P 0
IV.CSP1.EHZ. 2022-02-27T17:39:41.19 3.0 undecidable manual Pg 3.14 0
IV.SMA1.EHZ. 2022-02-27T17:39:41.61 0.3 undecidable manual S 73 0.3085 50 0.48 68
IV.ASSB.HHZ. 2022-02-27T17:39:40.10 1.0 undecidable manual P 338 0.5387 50 0.07 24
IV.NRCA.HHZ. 2022-02-27T17:39:40.92 0.1 undecidable manual S 25 0.3193 50 -0.53 89
IV.FDMO.HHZ. 2022-02-27T17:39:39.24 0.1 undecidable manual P 13 0.5063 50 -0.24 92
IV.CESX.HHZ. 2022-02-27T17:39:39.97 0.3 undecidable manual S 285 0.2635 50 0.18 73
IV.RM33.EHZ. 2022-02-27T17:39:38.09 0.3 undecidable manual S 99 0.2095 113 0.1 75
IV.MC2.EHZ. 2022-02-27T17:39:38.19 3.0 negative manual Pg 2.49 0
IV.MOMA.HHZ. 2022-02-27T17:39:37.12 3.0 negative manual Pg 1.23 0
IV.TERO.HHZ. 2022-02-27T17:39:36.52 3.0 negative manual Pg 2.85 0
IV.SMA1.EHZ. 2022-02-27T17:39:36.00 0.6 undecidable manual P 73 0.3085 50 -0.1 49
IV.NRCA.HHZ. 2022-02-27T17:39:36.13 0.6 negative manual P 25 0.3193 50 -0.16 49
IV.GAVE.EHZ. 2022-02-27T17:39:35.93 0.3 undecidable manual S 349 0.1520 120 -0.05 77
IV.POFI.HHZ. 2022-02-27T17:39:35.12 3.0 undecidable manual P 0.44 0
IV.ARRO.EHZ. 2022-02-27T17:39:35.02 0.3 undecidable manual S 286 0.1286 124 -0.2 75
IV.CESX.HHZ. 2022-02-27T17:39:34.39 0.6 positive manual P 285 0.2635 50 -0.93 38
IV.GAVE.EHZ. 2022-02-27T17:39:33.31 0.1 positive manual P 349 0.1520 120 0.18 100
IV.RM33.EHZ. 2022-02-27T17:39:33.76 1.0 undecidable manual P 99 0.2095 113 -0.52 23
IV.ARRO.EHZ. 2022-02-27T17:39:32.95 0.1 positive manual P 286 0.1286 124 0.26 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:2.0 0.0009350000000000001 0.18 AML other m 2022-02-27T17:39:35.35
IV.ARRO.EHN. ML:2.0 0.0009145000000000001 0.72 AML other m 2022-02-27T17:39:35.40
IV.GAVE.EHE. ML:2.1 0.00124 0.24 AML other m 2022-02-27T17:39:36.04
IV.GAVE.HNE. ML:2.1 0.0012050000000000001 0.3 AML other m 2022-02-27T17:39:36.03
IV.GAVE.EHN. ML:2.1 0.001185 0.26 AML other m 2022-02-27T17:39:36.32
IV.GAVE.HNN. ML:1.6 0.000371 1.48 AML other m 2022-02-27T17:39:36.94
IV.RM33.EHN. ML:1.8 0.0004055 0.22 AML other m 2022-02-27T17:39:38.22
IV.RM33.HNN. ML:1.8 0.00042200000000000007 0.22 AML other m 2022-02-27T17:39:38.22
IV.RM33.HNE. ML:1.8 0.0003835 0.58 AML other m 2022-02-27T17:39:38.26
IV.RM33.EHE. ML:1.8 0.000404 0.58 AML other m 2022-02-27T17:39:38.27
IV.SMA1.EHE. ML:2.0 0.000401 0.52 AML other m 2022-02-27T17:39:41.82
IV.CESX.HHE. ML:1.4 0.00011609999999999999 0.4 AML other m 2022-02-27T17:39:41.43
IV.NRCA.HHE. ML:1.9 0.0003205 0.7 AML other m 2022-02-27T17:39:41.47
IV.SMA1.EHN. ML:1.8 0.00025550000000000003 0.48 AML other m 2022-02-27T17:39:41.88
IV.CESX.HHN. ML:1.4 0.0001317 0.44 AML other m 2022-02-27T17:39:43.44
IV.NRCA.HHN. ML:1.8 0.000223 0.6 AML other m 2022-02-27T17:39:43.32
IV.TERO.HHN. ML:1.7 0.0001125 1.54 AML other m 2022-02-27T17:39:43.09
IV.MOMA.HHN. ML:1.7 0.00016350000000000002 0.92 AML other m 2022-02-27T17:39:44.78
IV.MOMA.HHE. ML:1.6 0.0001455 0.84 AML other m 2022-02-27T17:39:45.72
IV.TERO.HHE. ML:1.6 0.00008685 1.5 AML other m 2022-02-27T17:39:47.19
IV.MSSA.HHN. ML:3.6 0.0003525 1.1 AML other m 2022-02-27T17:40:55.37
IV.MSSA.HHE. ML:3.4 0.00023449999999999998 1.08 AML other m 2022-02-27T17:40:56.81
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