Earthquake with magnitude of ML 1.8 on date 25-05-2022 and time 06:43:55 (Italy) in region 2 km NW Saracinesco (RM)

A magnitude ML 1.8 earthquake occured in region: 2 km NW Saracinesco (RM), on

  • 25-05-2022 04:43:55 (UTC)
  • 25-05-2022 06:43:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.0230, 12.9460 at 7 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
Saracinesco RM 2 185 185
Mandela RM 2 917 1102
Cineto Romano RM 4 601 1703
Anticoli Corrado RM 4 915 2618
Sambuci RM 4 925 3543
Roviano RM 4 1351 4894
Vicovaro RM 5 4019 8913
Roccagiovine RM 5 263 9176
Arsoli RM 6 1586 10762
Riofreddo RM 6 781 11543
Ciciliano RM 7 1336 12879
Marano Equo RM 7 779 13658
Licenza RM 7 1011 14669
Vallinfreda RM 8 283 14952
Castel Madama RM 8 7399 22351
Oricola AQ 8 1244 23595
Agosta RM 9 1765 25360
Percile RM 9 255 25615
San Polo dei Cavalieri RM 9 2992 28607
Cerreto Laziale RM 9 1118 29725
Rocca Canterano RM 10 196 29921
Vivaro Romano RM 10 182 30103
Rocca di Botte AQ 10 856 30959
Gerano RM 11 1263 32222
Cervara di Roma RM 11 455 32677
Marcellina RM 11 7280 39957
Canterano RM 12 351 40308
Orvinio RI 12 405 40713
Pisoniano RM 13 770 41483
San Gregorio da Sassola RM 13 1619 43102
Camerata Nuova RM 14 447 43549
Pereto AQ 14 682 44231
Monteflavio RM 14 1348 45579
Tivoli RM 14 56533 102112
Casape RM 14 744 102856
Turania RI 14 241 103097
Rocca Santo Stefano RM 14 975 104072
Carsoli AQ 14 5396 109468
Collalto Sabino RI 15 442 109910
Pozzaglia Sabina RI 15 360 110270
Palombara Sabina RM 16 13269 123539
Poli RM 16 2418 125957
San Vito Romano RM 16 3273 129230
Subiaco RM 17 9074 138304
Bellegra RM 17 2887 141191
Montorio Romano RM 17 1984 143175
Moricone RM 18 2650 145825
Capranica Prenestina RM 18 351 146176
Scandriglia RI 18 3108 149284
Nespolo RI 18 246 149530
Guidonia Montecelio RM 18 88673 238203
Collegiove RI 19 213 238416
Roiate RM 19 737 239153
Paganico Sabino RI 19 172 239325
Sant'Angelo Romano RM 19 5018 244343
Olevano Romano RM 19 6687 251030
Rocca di Cave RM 20 377 251407
Gallicano nel Lazio RM 20 6334 257741
Affile RM 20 1548 259289
Ascrea RI 20 234 259523
Castel San Pietro Romano RM 20 902 260425

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Tivoli (56533 inhabitants)
18 Km E of Guidonia Montecelio (88673 inhabitants)
40 Km NE of Velletri (53303 inhabitants)
41 Km E of Roma (2864731 inhabitants)
52 Km SW of L'Aquila (69753 inhabitants)
54 Km NE of Aprilia (73446 inhabitants)
54 Km NE of Pomezia (62966 inhabitants)
62 Km N of Latina (125985 inhabitants)
65 Km SE of Terni (111501 inhabitants)
65 Km E of Fiumicino (78395 inhabitants)
69 Km NE of Anzio (54211 inhabitants)
82 Km SE of Viterbo (67173 inhabitants)
94 Km SW of Teramo (54892 inhabitants)
95 Km E of Civitavecchia (52991 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 2022-05-25
04:43:55
42.0228 12.9457 7 2022-05-25
04:52:14
Sala Sismica INGV-Roma 105123401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-25 04:43:55 ± 0.22
Latitude 42.0228 ± 0.0162
Longitude 12.9457 ± 0.0157
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 105123401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1891
Semi-minor axis of confidence ellipse (meter) 964
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 1890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52610
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 105123401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-25 04:52:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
ST.RONC.EHZ. 2022-05-25T04:45:54.52 3.0 undecidable manual Sn 0.55 0
OT.CGL1.HHZ. 2022-05-25T04:45:39.68 3.0 undecidable manual Sn 2.26 0
IV.ZCCA.HNZ. 2022-05-25T04:45:15.00 3.0 undecidable manual Sn -0.45 0
GU.CARD.HHZ. 2022-05-25T04:45:12.47 3.0 undecidable manual Sn -1.47 0
IV.MCRV.HHZ. 2022-05-25T04:44:56.63 3.0 undecidable manual Sn -0.12 0
IV.IMOL.HNZ. 2022-05-25T04:44:43.56 3.0 negative manual Pg 6.24 0
IV.MC2.EHZ. 2022-05-25T04:44:31.56 3.0 undecidable manual S -0.66 0
IV.SSFR.HHZ. 2022-05-25T04:44:23.54 3.0 undecidable manual P 0.68 0
IV.FDMO.HHZ. 2022-05-25T04:44:16.94 3.0 positive manual P -0.59 0
IV.MC2.EHZ. 2022-05-25T04:44:16.86 3.0 negative manual P 0.82 0
IV.MML1.EHZ. 2022-05-25T04:44:16.92 3.0 negative manual P -1.54 0
IV.NRCA.HHZ. 2022-05-25T04:44:15.02 3.0 positive manual P 0.56 0
IV.CESI.HHZ. 2022-05-25T04:44:15.03 3.0 negative manual P -1.91 0
IV.GIUL.HHZ. 2022-05-25T04:44:14.63 0.1 undecidable manual S 154 0.5180 50 0.5 84
IV.VVLD.HHZ. 2022-05-25T04:44:14.67 0.3 undecidable manual S 107 0.5261 50 0.29 67
IV.SMA1.EHZ. 2022-05-25T04:44:13.20 3.0 negative manual P 1.37 0
IV.PTQR.HHZ. 2022-05-25T04:44:09.04 0.6 undecidable manual S 90 0.3381 101 0.27 47
IV.GUAR.HHZ. 2022-05-25T04:44:09.41 0.6 undecidable manual S 130 0.3552 50 0.1 48
IV.VVLD.HHZ. 2022-05-25T04:44:06.21 0.1 undecidable manual P 107 0.5261 50 -0.19 92
IV.GIUL.HHZ. 2022-05-25T04:44:05.59 0.1 undecidable manual P 154 0.5180 50 -0.67 81
IV.PTQR.HHZ. 2022-05-25T04:44:03.53 1.0 undecidable manual P 90 0.3381 101 0.36 23
IV.GUAR.HHZ. 2022-05-25T04:44:02.88 0.1 undecidable manual P 130 0.3552 50 -0.6 86
IV.MTCE.HHZ. 2022-05-25T04:44:01.80 0.6 undecidable manual S 270 0.1511 114 -0.07 51
IV.MTCE.HHZ. 2022-05-25T04:43:59.43 0.1 negative manual P 270 0.1511 114 0.25 97
IV.CERT.HHZ. 2022-05-25T04:43:59.36 0.1 undecidable manual S 160 0.0782 130 -0.12 100
IV.CERT.HHZ. 2022-05-25T04:43:58.08 0.1 negative manual P 160 0.0782 130 0.28 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERT.HHE. ML:2.0 0.001555 0.4 AML other m 2022-05-25T04:43:59.43
IV.CERT.HNE. ML:2.4 0.00432 0.9 AML other m 2022-05-25T04:44:00.94
IV.CERT.HNN. ML:2.3 0.0034950000000000003 0.74 AML other m 2022-05-25T04:44:00.97
IV.CERT.HHN. ML:2.4 0.003765 0.74 AML other m 2022-05-25T04:44:00.97
IV.MTCE.HHE. ML:1.9 0.000787 0.66 AML other m 2022-05-25T04:44:02.84
IV.MTCE.HHN. ML:1.7 0.0005204999999999999 0.48 AML other m 2022-05-25T04:44:02.78
IV.PTQR.HHN. ML:1.8 0.0002595 1.52 AML other m 2022-05-25T04:44:09.99
IV.PTQR.HHE. ML:2.0 0.000388 0.28 AML other m 2022-05-25T04:44:10.32
IV.GIUL.HHE. ML:1.5 0.0000718 0.4 AML other m 2022-05-25T04:44:15.48
IV.GUAR.HHE. ML:1.9 0.00030199999999999997 0.48 AML other m 2022-05-25T04:44:16.39
IV.GUAR.HHN. ML:1.9 0.0003025 0.6 AML other m 2022-05-25T04:44:16.33
IV.GIUL.HHN. ML:1.6 0.00009445 0.54 AML other m 2022-05-25T04:44:16.70
IV.VVLD.HHN. ML:1.5 0.00007549999999999999 1.04 AML other m 2022-05-25T04:44:21.38
IV.VVLD.HHE. ML:1.6 0.00008245 0.46 AML other m 2022-05-25T04:44:22.05
IV.SMA1.EHN. ML:1.7 0.00008685000000000001 0.92 AML other m 2022-05-25T04:44:27.11
IV.SMA1.EHE. ML:1.9 0.0001255 0.44 AML other m 2022-05-25T04:44:28.07
IV.NRCA.HHE. ML:1.6 0.00004555 1.62 AML other m 2022-05-25T04:44:30.88
IV.CESI.HHN. ML:1.9 0.00006805 0.5 AML other m 2022-05-25T04:44:31.52
IV.NRCA.HHN. ML:1.6 0.00005015 1.6 AML other m 2022-05-25T04:44:31.81
IV.CESI.HHE. ML:1.8 0.00005485 1.44 AML other m 2022-05-25T04:44:33.02
IV.MML1.EHE. ML:1.8 0.0000496 0.58 AML other m 2022-05-25T04:44:34.22
IV.FDMO.HHN. ML:1.6 0.0000316 0.86 AML other m 2022-05-25T04:44:36.53
IV.FDMO.HHE. ML:1.6 0.000032149999999999995 0.82 AML other m 2022-05-25T04:44:36.80
IV.MML1.EHN. ML:1.7 0.00003735 1.66 AML other m 2022-05-25T04:44:37.05
IV.ZCCA.HHE. ML:2.6 0.00004425 0.42 AML other m 2022-05-25T04:44:59.37
GU.CARD.HHN. ML:2.7 0.00006500000000000001 0.62 AML other m 2022-05-25T04:45:13.10
GU.CARD.HHE. ML:2.6 0.0000544 0.16 AML other m 2022-05-25T04:45:13.12
IV.ZCCA.HNN. ML:4.0 0.0012124999999999998 0.98 AML other m 2022-05-25T04:45:18.87
IV.ZCCA.HNE. ML:3.9 0.001034 0.94 AML other m 2022-05-25T04:45:18.87
IV.ZCCA.HHN. ML:2.6 0.000043899999999999996 0.42 AML other m 2022-05-25T04:45:41.96
OT.CGL1.HHE. ML:2.3 0.00001245 0.48 AML other m 2022-05-25T04:45:42.63
ST.RONC.HNN. ML:4.2 0.000646 1.26 AML other m 2022-05-25T04:46:02.89
ST.RONC.HNE. ML:5.0 0.003215 1.24 AML other m 2022-05-25T04:46:02.27
OT.CGL1.HHN. ML:2.6 0.000018849999999999997 0.66 AML other m 2022-05-25T04:46:07.84
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