Earthquake with magnitude of ML 1.8 on date 05-04-2020 and time 20:40:27 (UTC) in region 4 km NE Concerviano (RI)

A magnitude ML 1.8 earthquake occured in region: 4 km NE Concerviano (RI), on

  • 05-04-2020 20:40:27 (UTC)
  • 05-04-2020 22:40:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.35, 13.03 at 9 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
Concerviano RI 4 291 291
Castel Sant'Angelo RI 5 1308 1599
Petrella Salto RI 7 1197 2796
Borgo Velino RI 7 972 3768
Cittaducale RI 8 6828 10596
Antrodoco RI 9 2588 13184
Longone Sabino RI 10 597 13781
Belmonte in Sabina RI 12 636 14417
Rocca Sinibalda RI 12 815 15232
Varco Sabino RI 12 187 15419
Micigliano RI 12 127 15546
Fiamignano RI 12 1413 16959
Marcetelli RI 13 89 17048
Rieti RI 15 47698 64746
Castel di Tora RI 15 288 65034
Torricella in Sabina RI 16 1342 66376
Colle di Tora RI 16 372 66748
Ascrea RI 17 234 66982
Cantalice RI 17 2755 69737
Paganico Sabino RI 18 172 69909
Poggio San Lorenzo RI 18 589 70498
Pescorocchiano RI 19 2075 72573
Monteleone Sabino RI 19 1224 73797
Collegiove RI 19 213 74010
Scoppito AQ 19 3727 77737
Montenero Sabino RI 19 299 78036

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km W of L'Aquila (69753 inhabitants)
39 Km SE of Terni (111501 inhabitants)
46 Km NE of Guidonia Montecelio (88673 inhabitants)
47 Km NE of Tivoli (56533 inhabitants)
66 Km SW of Teramo (54892 inhabitants)
68 Km NE of Roma (2864731 inhabitants)
73 Km SE of Foligno (57155 inhabitants)
76 Km E of Viterbo (67173 inhabitants)
76 Km N of Velletri (53303 inhabitants)
87 Km NE of Pomezia (62966 inhabitants)
89 Km NE of Aprilia (73446 inhabitants)
91 Km NE of Fiumicino (78395 inhabitants)
94 Km W of Chieti (51815 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
98 Km N of Latina (125985 inhabitants)
98 Km W of Pescara (121014 inhabitants)
99 Km SE of Perugia (166134 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.8 2020-04-05
20:40:27
42.35 13.03 9 2020-04-05
20:51:00
Sala Sismica INGV-Roma 77930941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-05 20:40:27 ± 0.09
Latitude 42.35 ± 0.00
Longitude 13.03 ± 0.01
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 77930941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 495
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.6637
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 77930941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-05 20:51:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VITU.HHZ. 2020-04-05T20:40:58.31 3.0 undecidable manual Pg 0.09 0
IV.CESI.HHZ. 2020-04-05T20:40:51.14 3.0 undecidable manual S 352 0.6637 50 1 0
IV.FAGN.HHZ. 2020-04-05T20:40:43.23 0.6 undecidable manual S 101 0.4182 50 0.37 46
IV.CERT.HHZ. 2020-04-05T20:40:41.70 0.6 undecidable manual S 185 0.3993 50 -0.59 43
IV.SMA1.EHZ. 2020-04-05T20:40:41.56 0.6 undecidable manual S 38 0.3624 50 0.36 47
IV.CESI.HHZ. 2020-04-05T20:40:40.44 0.1 undecidable manual P 352 0.6637 50 -0.14 92
IV.ARRO.EHZ. 2020-04-05T20:40:39.53 0.6 undecidable manual S 320 0.3022 50 0.1 50
IV.LNSS.HHZ. 2020-04-05T20:40:37.79 0.6 undecidable manual S 2 0.2563 107 -0.05 51
IV.RM33.EHZ. 2020-04-05T20:40:36.34 0.6 undecidable manual S 40 0.2122 111 0.1 51
IV.CERT.HHZ. 2020-04-05T20:40:36.08 0.1 undecidable manual P 185 0.3993 50 0.03 99
IV.SRES.HHZ. 2020-04-05T20:40:36.62 0.1 undecidable manual P 254 0.3993 50 0.57 87
IV.FAGN.HHZ. 2020-04-05T20:40:36.16 0.1 undecidable manual P 101 0.4182 50 -0.22 95
IV.CESX.HHZ. 2020-04-05T20:40:36.33 0.1 undecidable manual P 309 0.4173 50 -0.04 98
IV.SMA1.EHZ. 2020-04-05T20:40:35.31 0.1 undecidable manual P 38 0.3624 50 -0.11 98
IV.ARRO.EHZ. 2020-04-05T20:40:34.20 0.1 undecidable manual P 320 0.3022 50 -0.19 98
IV.LNSS.HHZ. 2020-04-05T20:40:33.36 0.1 undecidable manual P 2 0.2563 107 -0.12 100
IV.RM33.EHZ. 2020-04-05T20:40:32.60 0.6 negative manual P 40 0.2122 111 0.05 51
IV.FIAM.HHZ. 2020-04-05T20:40:32.56 0.6 undecidable manual S 140 0.1025 128 0.05 52
IV.FIAM.HHZ. 2020-04-05T20:40:30.65 1.0 negative manual P 140 0.1025 128 0.25 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:2 0.000620021 0.4608 AML other m 2020-04-05T20:40:38.22
IV.RM33.HNN. ML:1.9 0.0005857014 0.448 AML other m 2020-04-05T20:40:38.21
IV.RM33.EHE. ML:2.4 0.0014814505 0.2688 AML other m 2020-04-05T20:40:37.12
IV.RM33.HNE. ML:2.4 0.0015185585 0.2688 AML other m 2020-04-05T20:40:37.11
IV.LNSS.HHN. ML:2 0.00045899845 0.32 AML other m 2020-04-05T20:40:38.32
IV.LNSS.HNN. ML:2 0.0004595565 0.3456 AML other m 2020-04-05T20:40:38.15
IV.LNSS.HNE. ML:1.8 0.000332430825 3.84 AML other m 2020-04-05T20:40:42.43
IV.LNSS.HHE. ML:1.8 0.0003439904 0.4352 AML other m 2020-04-05T20:40:40.51
IV.ARRO.EHN. ML:1.6 0.00015411265 0.2048 AML other m 2020-04-05T20:40:41.43
IV.ARRO.EHE. ML:1.6 0.00015418155 0.256 AML other m 2020-04-05T20:40:43.17
IV.SMA1.EHE. ML:1.6 0.0001455163 0.32 AML other m 2020-04-05T20:40:43.71
IV.SMA1.EHN. ML:1.9 0.000281475 0.512 AML other m 2020-04-05T20:40:43.67
IV.CESX.HHN. ML:1.4 6.8212925E-5 0.4608 AML other m 2020-04-05T20:40:48.60
IV.CESX.HHE. ML:1.2 4.6416145E-5 0.7168 AML other m 2020-04-05T20:40:51.42
IV.SRES.HHN. ML:1.1 3.7098465E-5 0.5504 AML other m 2020-04-05T20:40:48.90
IV.SRES.HHE. ML:1.3 6.720201E-5 0.6528 AML other m 2020-04-05T20:40:46.02
IV.CESI.HNN. ML:2.2 0.00027625581 12.5696 AML other m 2020-04-05T20:41:09.20
IV.CESI.HHE. ML:1.5 4.757648E-5 0.8064 AML other m 2020-04-05T20:40:59.36
IV.CESI.HHN. ML:1.7 7.8048165E-5 0.2688 AML other m 2020-04-05T20:40:52.56
IV.CESI.HNE. ML:2.2 0.00024772285 3.392 AML other m 2020-04-05T20:40:57.61
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download