Earthquake with magnitude of ML 0.9 on date 22-05-2020 and time 12:19:09 (Italy) in region 3 km E Cascia (PG)

A magnitude ML 0.9 earthquake occured in region: 3 km E Cascia (PG), on

  • 22-05-2020 10:19:09 (UTC)
  • 22-05-2020 12:19:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.71, 13.05 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
Cascia PG 3 3217 3217
Poggiodomo PG 10 117 3334
Monteleone di Spoleto PG 10 599 3933
Norcia PG 10 4957 8890
Cittareale RI 13 482 9372
Accumoli RI 16 667 10039
Cerreto di Spoleto PG 17 1075 11114
Vallo di Nera PG 17 364 11478
Leonessa RI 17 2435 13913
Sant'Anatolia di Narco PG 18 564 14477
Scheggino PG 18 461 14938
Preci PG 19 724 15662

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Terni (111501 inhabitants)
40 Km SE of Foligno (57155 inhabitants)
49 Km NW of L'Aquila (69753 inhabitants)
54 Km W of Teramo (54892 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km E of Viterbo (67173 inhabitants)
85 Km N of Tivoli (56533 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
99 Km W of Pescara (121014 inhabitants)
100 Km W of Chieti (51815 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
Reviewed
Rev100
ML 0.9 2020-05-22
10:19:09
42.71 13.05 10 2020-05-22
10:23:37
Sala Sismica INGV-Roma 79443611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-22 10:19:09 ± 0.07
Latitude 42.71 ± 0.00
Longitude 13.05 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79443611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 504
Semi-minor axis of confidence ellipse (meter) 281
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41099
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 79443611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-22 10:23:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CIMA.HNZ. 2020-05-22T10:19:25.34 3.0 positive manual P 1.18 0
IV.GUAR.HHZ. 2020-05-22T10:19:25.23 3.0 undecidable manual P -0.5 0
IV.MF5.EHZ. 2020-05-22T10:19:25.36 3.0 undecidable manual S 47 0.411 50 1.44 0
IV.CSP1.EHZ. 2020-05-22T10:19:23.58 0.3 undecidable manual S 16 0.402 50 -0.06 98
IV.CESI.HHZ. 2020-05-22T10:19:21.26 0.3 undecidable manual S 340 0.3175 50 0.11 99
IV.FDMO.HHZ. 2020-05-22T10:19:21.35 0.3 undecidable manual S 5 0.3318 50 -0.21 97
IV.MMO1.EHZ. 2020-05-22T10:19:20.12 0.3 undecidable manual S 46 0.2797 50 0.1 100
IV.MC2.EHZ. 2020-05-22T10:19:18.52 0.6 undecidable manual S 26 0.2284 111 0.03 68
IV.RM33.EHZ. 2020-05-22T10:19:18.43 0.6 undecidable manual S 149 0.2302 111 -0.13 67
IV.MF5.EHZ. 2020-05-22T10:19:17.96 1.0 undecidable manual P 47 0.411 50 0.34 31
IV.CSP1.EHZ. 2020-05-22T10:19:17.58 1.0 undecidable manual P 16 0.402 50 0.11 32
IV.TERO.HHZ. 2020-05-22T10:19:17.66 3.0 undecidable manual P -0.13 0
IV.FDMO.HHZ. 2020-05-22T10:19:16.18 0.6 undecidable manual P 5 0.3318 50 -0.09 66
IV.CESI.HHZ. 2020-05-22T10:19:16.08 0.6 positive manual P 340 0.3175 50 0.05 67
IV.MMO1.EHZ. 2020-05-22T10:19:15.33 0.6 negative manual P 46 0.2797 50 -0.05 67
IV.MC2.EHZ. 2020-05-22T10:19:14.49 0.6 undecidable manual P 26 0.2284 111 -0.01 69
IV.RM33.EHZ. 2020-05-22T10:19:14.62 0.6 undecidable manual P 149 0.2302 111 0.09 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1 5.47E-5 0.2 AML other m 2020-05-22T10:19:18.67
IV.RM33.EHE. ML:0.9 4.565E-5 0.76 AML other m 2020-05-22T10:19:19.83
IV.CESI.HHN. ML:1 3.915E-5 0.22 AML other m 2020-05-22T10:19:21.44
IV.CESI.HHE. ML:0.8 2.415E-5 1.02 AML other m 2020-05-22T10:19:22.96
IV.FDMO.HHN. ML:0.9 2.905E-5 0.9 AML other m 2020-05-22T10:19:22.46
IV.FDMO.HHE. ML:0.8 2.55E-5 0.6 AML other m 2020-05-22T10:19:23.35
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