Earthquake with magnitude of ML 2.4 on date 28-08-2020 and time 14:27:54 (Italy) in region 3 km NW Lariano (RM)

A magnitude ML 2.4 earthquake occured in region: 3 km NW Lariano (RM), on

  • 28-08-2020 12:27:54 (UTC)
  • 28-08-2020 14:27:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.75, 12.81 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
Lariano RM 3 13432 13432
Rocca Priora RM 6 11962 25394
Labico RM 8 6379 31773
Velletri RM 8 53303 85076
San Cesareo RM 8 15153 100229
Rocca di Papa RM 9 17034 117263
Nemi RM 9 1943 119206
Artena RM 9 14276 133482
Monte Compatri RM 9 11978 145460
Valmontone RM 10 15959 161419
Zagarolo RM 10 17843 179262
Colonna RM 11 4287 183549
Monte Porzio Catone RM 11 8693 192242
Genzano di Roma RM 11 23970 216212
Lanuvio RM 12 13632 229844
Palestrina RM 12 21672 251516
Ariccia RM 12 19407 270923
Rocca Massima LT 12 1136 272059
Frascati RM 12 22087 294146
Grottaferrata RM 13 20327 314473
Cave RM 13 11287 325760
Albano Laziale RM 13 41715 367475
Marino RM 13 43026 410501
Castel San Pietro Romano RM 13 902 411403
Castel Gandolfo RM 13 8997 420400
Gallicano nel Lazio RM 14 6334 426734
Cori LT 15 11065 437799
Rocca di Cave RM 16 377 438176
Genazzano RM 16 6036 444212
Colleferro RM 16 21595 465807
Poli RM 17 2418 468225
Capranica Prenestina RM 17 351 468576
Cisterna di Latina LT 18 36868 505444
Ciampino RM 18 38412 543856
Casape RM 19 744 544600
Segni RM 19 9159 553759
San Gregorio da Sassola RM 20 1619 555378

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NE of Velletri (53303 inhabitants)
22 Km NE of Aprilia (73446 inhabitants)
24 Km S of Tivoli (56533 inhabitants)
27 Km E of Pomezia (62966 inhabitants)
29 Km S of Guidonia Montecelio (88673 inhabitants)
31 Km SE of Roma (2864731 inhabitants)
32 Km N of Latina (125985 inhabitants)
37 Km NE of Anzio (54211 inhabitants)
48 Km E of Fiumicino (78395 inhabitants)
83 Km SW of L'Aquila (69753 inhabitants)
91 Km S of Terni (111501 inhabitants)
92 Km E of Civitavecchia (52991 inhabitants)
94 Km SE of Viterbo (67173 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 3 days preceding this event

Earthquakes of the 3 days preceding this event *

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 90 days preceding this event

Earthquakes of the 90 days preceding this event *

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 from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

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 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 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 2.4 2020-08-28
12:27:54
41.75 12.81 10 2020-11-19
12:37:04
Bollettino Sismico Italiano INGV 83842221
Reviewed
Rev100
ML 2.4 2020-08-28
12:27:54
41.75 12.8 10 2020-08-28
12:41:30
Sala Sismica INGV-Roma 82407861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-28 12:27:54 ± 0.06
Latitude 41.75 ± 0.01
Longitude 12.81 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83842221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 546
Semi-minor axis of confidence ellipse (meter) 437
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.91371
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations 51
Type of magnitude ML
Reference to an origin 83842221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-17 02:47:40

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations 42
Type of magnitude ML
Reference to an origin 82407861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-28 12:41:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2020-08-28T12:29:03.70 3.0 undecidable manual Sn 1.38 0
IV.NARO.HHZ. 2020-08-28T12:28:25.30 3.0 positive manual Pn -0.29 0
IV.POFI.HHZ. 2020-08-28T12:28:18.64 0.6 undecidable manual S 92 0.6727 50 1.08 31
IV.LIK.EHN.01 2020-08-28T12:28:17.53 0.6 undecidable manual S 114 0.6124 50 1.75 21
IV.VVLD.HHZ. 2020-08-28T12:28:16.31 0.6 undecidable manual S 79 0.6169 50 0.41 42
IV.PTQR.HHZ. 2020-08-28T12:28:13.05 0.6 undecidable manual S 58 0.5162 50 0.14 45
IV.CERA.HHZ. 2020-08-28T12:28:11.71 0.3 undecidable manual P 99 0.9137 50 -0.36 59
IV.FAGN.HHZ. 2020-08-28T12:28:11.28 0.6 undecidable manual P 48 0.7716 50 1.65 22
IT.CSO1.HGZ. 2020-08-28T12:28:10.17 0.6 undecidable manual S 30 0.4065 50 0.5 42
IV.ARRO.EHZ. 2020-08-28T12:28:10.76 0.3 undecidable manual P 358 0.8292 50 0.15 63
IV.INTR.HHZ. 2020-08-28T12:28:10.64 0.1 negative manual P 72 0.8544 50 -0.41 79
IV.BARO.EHZ. 2020-08-28T12:28:09.51 0.3 undecidable manual P 312 0.7518 50 0.22 63
IV.GIUL.HHZ. 2020-08-28T12:28:09.32 0.3 undecidable manual S 120 0.3831 50 0.35 66
IV.TOLF.HHN. 2020-08-28T12:28:08.46 0.6 undecidable manual P 298 0.6799 50 0.4 41
IV.GUAR.HHZ. 2020-08-28T12:28:08.64 0.3 undecidable manual S 83 0.3768 50 -0.13 69
IV.POFI.HHZ. 2020-08-28T12:28:07.66 0.1 undecidable manual P 92 0.6727 50 -0.28 84
IT.RMVT.HGZ. 2020-08-28T12:28:07.37 0.6 undecidable manual S 310 0.3175 50 0.34 45
IT.RMMM.HGZ. 2020-08-28T12:28:07.21 0.6 undecidable manual S 303 0.3175 50 0.17 46
IV.LIK.EHN.01 2020-08-28T12:28:07.17 0.6 undecidable manual P 114 0.6124 50 0.26 43
IV.LRP.EHZ. 2020-08-28T12:28:06.26 0.3 undecidable manual P 100 0.5882 50 -0.23 65
IV.VVLD.HHZ. 2020-08-28T12:28:06.68 0.1 undecidable manual P 79 0.6169 50 -0.3 85
IT.MMP1.HGE. 2020-08-28T12:28:05.28 1.0 undecidable manual P 355 0.5009 50 0.28 22
IV.SRES.HHZ. 2020-08-28T12:28:05.29 0.6 undecidable manual P 335 0.5351 50 -0.3 43
IV.LATB.EHZ. 2020-08-28T12:28:05.57 0.3 undecidable manual S 156 0.2797 50 -0.35 68
IV.MTCE.HHZ. 2020-08-28T12:28:05.14 0.3 undecidable manual S 349 0.277 50 -0.69 61
IV.FIAM.HHZ. 2020-08-28T12:28:05.80 0.3 undecidable manual P 24 0.5657 50 -0.3 65
IV.ROM9.HNZ. 2020-08-28T12:28:04.84 0.3 undecidable manual S 290 0.2338 110 0.46 67
IV.LNKT.HNZ. 2020-08-28T12:28:04.88 0.6 undecidable manual S 290 0.2338 110 0.5 44
IV.PTQR.HHZ. 2020-08-28T12:28:04.96 0.3 undecidable manual P 58 0.5162 50 -0.3 65
IV.GUAR.HHZ. 2020-08-28T12:28:02.69 0.1 negative manual P 83 0.3768 50 -0.18 92
IT.RMVT.HGZ. 2020-08-28T12:28:02.17 0.6 undecidable manual P 310 0.3175 50 0.31 45
IV.GIUL.HHZ. 2020-08-28T12:28:02.84 0.1 negative manual P 120 0.3831 50 -0.14 92
IT.RMMM.HGZ. 2020-08-28T12:28:02.10 0.3 undecidable manual P 303 0.3175 50 0.23 69
IT.CSO1.HGZ. 2020-08-28T12:28:02.73 0.6 undecidable manual P 30 0.4065 50 -0.66 40
IV.SAMA.EHZ. 2020-08-28T12:28:01.52 0.6 undecidable manual S 281 0.1655 117 -0.46 45
IV.RCAV.EHZ. 2020-08-28T12:28:01.54 0.3 undecidable manual S 46 0.1394 121 0.44 68
IV.MTCE.HHZ. 2020-08-28T12:28:00.86 0.1 undecidable manual P 349 0.277 50 -0.31 91
IV.LAV9.HNZ. 2020-08-28T12:28:00.34 0.3 undecidable manual S 229 0.1106 128 0.16 73
IV.LATB.EHZ. 2020-08-28T12:28:00.95 0.1 undecidable manual P 156 0.2797 50 -0.27 92
IV.ROM9.HNZ. 2020-08-28T12:28:00.69 0.3 undecidable manual P 290 0.2338 110 0.36 68
IV.LNKT.HNZ. 2020-08-28T12:28:00.74 1.0 undecidable manual P 290 0.2338 110 0.41 22
IV.MA9.HHZ. 2020-08-28T12:27:59.66 0.3 undecidable manual S 280 0.1151 127 -0.65 64
IV.RMP.HHZ. 2020-08-28T12:27:59.56 0.3 undecidable manual S 308 0.0998 130 -0.31 71
IV.RDP.HHZ. 2020-08-28T12:27:59.08 0.3 undecidable manual S 278 0.0755 138 -0.12 74
IV.RCAV.EHZ. 2020-08-28T12:27:58.55 0.3 undecidable manual P 46 0.1394 121 0.11 73
IV.VIVA.HHZ. 2020-08-28T12:27:58.06 0.3 undecidable manual S 270 0.0306 160 -0.23 73
IV.SAMA.EHZ. 2020-08-28T12:27:58.75 0.1 positive manual P 281 0.1655 117 -0.2 95
IV.LAV9.HNZ. 2020-08-28T12:27:58.36 0.3 undecidable manual P 229 0.1106 128 0.45 68
IV.MA9.HHZ. 2020-08-28T12:27:57.99 0.1 negative manual P 280 0.1151 127 0 100
IV.RMP.HHZ. 2020-08-28T12:27:57.77 0.1 undecidable manual P 308 0.0998 130 0.04 100
IV.RDP.HHZ. 2020-08-28T12:27:57.52 0.1 negative manual P 278 0.0755 138 0.18 97
IV.VIVA.HHZ. 2020-08-28T12:27:56.90 0.1 negative manual P 270 0.0306 160 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VIVA.HHE. ML:3.8 0.1334676 0.1408 AML other m 2020-08-28T12:27:58.18
IV.VIVA.HHN. ML:3.6 0.08173798 0.2752 AML other m 2020-08-28T12:27:58.79
IV.RDP.HHE. ML:3.4 0.03941072 0.3776 AML other m 2020-08-28T12:27:59.80
IV.RDP.HHN. ML:3.5 0.04295791 0.1984 AML other m 2020-08-28T12:27:59.78
IV.RMP.HHN. ML:0 0.03643769 0.32 AML other m 2020-08-28T12:28:03.13
IV.RCAV.EHE. ML:2.9 0.007087696 0.3008 AML other m 2020-08-28T12:28:01.88
IV.RMP.HHE. ML:3.3 0.022749835 0.2432 AML other m 2020-08-28T12:28:02.10
IV.RCAV.EHN. ML:0 0.0074364285 0.1856 AML other m 2020-08-28T12:28:02.46
IV.LAV9.HNN. ML:3.2 0.01890574 0.4096 AML other m 2020-08-28T12:28:03.97
IV.LAV9.HHN. ML:3.2 0.019699035 0.4032 AML other m 2020-08-28T12:28:03.97
IV.LAV9.HNE. ML:3.2 0.01772813 0.2688 AML other m 2020-08-28T12:28:05.77
IV.LAV9.HHE. ML:3.2 0.01903138 0.2752 AML other m 2020-08-28T12:28:05.78
IV.MTCE.HHE. ML:0 0.00051264335 0.3456 AML other m 2020-08-28T12:28:06.12
IV.LATB.EHN. ML:1.6 0.00017327585 0.1984 AML other m 2020-08-28T12:28:06.18
IV.LATB.EHE. ML:1.6 0.0002072916 0.2432 AML other m 2020-08-28T12:28:08.77
IV.MTCE.HHN. ML:0 0.00061399305 0.4224 AML other m 2020-08-28T12:28:09.72
IV.GIUL.HHE. ML:2.6 0.0011810193 0.4224 AML other m 2020-08-28T12:28:10.12
IV.GUAR.HHN. ML:2.5 0.001124324 0.3456 AML other m 2020-08-28T12:28:11.16
IV.GIUL.HHN. ML:2.3 0.00070017545 0.1856 AML other m 2020-08-28T12:28:12.13
IV.GUAR.HHE. ML:2.5 0.00104718105 0.3008 AML other m 2020-08-28T12:28:12.31
IV.PTQR.HHN. ML:2.4 0.0005979715 0.416 AML other m 2020-08-28T12:28:13.74
IV.PTQR.HHE. ML:2.6 0.0008996075 0.2624 AML other m 2020-08-28T12:28:14.29
IV.FIAM.HNN. ML:0 0.00030469265 0.544 AML other m 2020-08-28T12:28:15.48
IV.FIAM.HHN. ML:0 0.00013270815 0.5248 AML other m 2020-08-28T12:28:15.48
IV.SRES.HHE. ML:2.4 0.00046261235 0.32 AML other m 2020-08-28T12:28:15.41
IV.VVLD.HNN. ML:2.5 0.0006167178 0.544 AML other m 2020-08-28T12:28:16.96
IV.VVLD.HHN. ML:2.5 0.00064268335 0.544 AML other m 2020-08-28T12:28:16.96
IV.VVLD.HHE. ML:2.8 0.001083524 0.2816 AML other m 2020-08-28T12:28:16.84
IV.VVLD.HNE. ML:2.8 0.0010521675 0.3008 AML other m 2020-08-28T12:28:16.84
IV.SRES.HHN. ML:2 0.0002013017 0.2432 AML other m 2020-08-28T12:28:17.37
IV.LRP.EHN. ML:1.8 0.00010544004 0.2816 AML other m 2020-08-28T12:28:18.14
IV.LRP.EHE. ML:2.4 0.00048683065 0.2368 AML other m 2020-08-28T12:28:18.95
IV.POFI.HHE. ML:2.2 0.00021834605 0.384 AML other m 2020-08-28T12:28:19.61
IV.POFI.HNE. ML:2.3 0.00029433415 0.3776 AML other m 2020-08-28T12:28:19.81
IV.POFI.HHN. ML:2.1 0.0001775745 0.3008 AML other m 2020-08-28T12:28:20.06
IV.POFI.HNN. ML:2.2 0.00025664175 0.3136 AML other m 2020-08-28T12:28:20.06
IV.BARO.HNE. ML:2.5 0.00043856605 0.4288 AML other m 2020-08-28T12:28:22.42
IV.BARO.EHE. ML:2.5 0.0004104763 0.4224 AML other m 2020-08-28T12:28:22.42
IV.BARO.EHN. ML:2.4 0.0003229409 0.2944 AML other m 2020-08-28T12:28:22.88
IV.FIAM.HHE. ML:0 0.0001520987 0.4032 AML other m 2020-08-28T12:28:22.80
IV.INTR.HNN. ML:2.4 0.0002941922 0.352 AML other m 2020-08-28T12:28:24.75
IV.INTR.HHN. ML:2.4 0.0002701122 0.3584 AML other m 2020-08-28T12:28:24.58
IV.BARO.HNN. ML:2.5 0.0003767281 0.48 AML other m 2020-08-28T12:28:24.82
IV.INTR.HNE. ML:2.4 0.0003064837 0.9664 AML other m 2020-08-28T12:28:24.99
IV.ARRO.EHE. ML:0 0.0002029063 0.2432 AML other m 2020-08-28T12:28:27.28
IV.ARRO.EHN. ML:0 0.00020634505 0.1792 AML other m 2020-08-28T12:28:27.80
IV.INTR.HHE. ML:2.4 0.00028550645 0.5824 AML other m 2020-08-28T12:28:30.58
IV.CERA.HNN. ML:2.2 0.0001641019 0.416 AML other m 2020-08-28T12:28:31.43
IV.CERA.HHN. ML:2.2 0.0001717387 0.3968 AML other m 2020-08-28T12:28:31.42
IV.CERA.HHE. ML:2.2 0.00014799895 0.3968 AML other m 2020-08-28T12:28:35.34
IV.CERA.HNE. ML:2.2 0.00015880695 0.3968 AML other m 2020-08-28T12:28:35.15
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

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