A magnitude ML 0.2 earthquake occured in region: 4 km N Norcia (PG), on
and geographic coordinates (lat, lon) 42.8330, 13.1020 at 9 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Norcia | PG | 4 | 4957 | 4957 |
Preci | PG | 7 | 724 | 5681 |
Castelsantangelo sul Nera | MC | 8 | 281 | 5962 |
Visso | MC | 11 | 1107 | 7069 |
Ussita | MC | 13 | 444 | 7513 |
Cascia | PG | 15 | 3217 | 10730 |
Cerreto di Spoleto | PG | 15 | 1075 | 11805 |
Sellano | PG | 16 | 1079 | 12884 |
Arquata del Tronto | AP | 17 | 1178 | 14062 |
Montegallo | AP | 19 | 523 | 14585 |
Poggiodomo | PG | 19 | 117 | 14702 |
Accumoli | RI | 19 | 667 | 15369 |
Monte Cavallo | MC | 20 | 145 | 15514 |
Montemonaco | AP | 20 | 604 | 16118 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.2 | 2021-05-04 21:20:03 |
42.8328 | 13.1023 | 9 | 2021-12-29 11:12:25 |
Bollettino Sismico Italiano INGV | 94955801 |
Reviewed Rev100 |
Md 1.4 | 2021-05-04 21:20:03 |
42.82 | 13.111 | 9 | 2021-05-04 21:27:03 |
Sala Sismica INGV-Roma | 89778401 |
Field | Value |
---|---|
Time (UTC) | 2021-05-04 21:20:03 ± 0.13 |
Latitude | 42.8328 ± 0.0036 |
Longitude | 13.1023 ± 0.0061 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 94955801 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 485 |
Semi-minor axis of confidence ellipse (meter) | 201 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 298 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 490.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 106 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.23472 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.2 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 94955801 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-09-02 10:32:02 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 89778401 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-04 21:27:03 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.POFI.HNZ. | 2021-05-04T21:20:49.71 | 3.0 | undecidable | manual | Sn | 0.15 | 0 | |||
IV.POFI.HNZ. | 2021-05-04T21:20:24.87 | 3.0 | undecidable | manual | Pn | -1.07 | 0 | |||
IV.LNSS.HNZ. | 2021-05-04T21:20:13.19 | 0.6 | undecidable | manual | S | 191 | 26.0517 | 110 | -0.12 | 48 |
IV.CESI.HHE. | 2021-05-04T21:20:12.76 | 0.6 | undecidable | manual | S | 320 | 24.9528 | 111 | -0.21 | 48 |
IV.GAVE.EHZ. | 2021-05-04T21:20:12.37 | 0.6 | undecidable | manual | S | 227 | 23.0547 | 112 | 0.02 | 50 |
IV.FDMO.HHZ. | 2021-05-04T21:20:11.95 | 0.6 | undecidable | manual | S | 357 | 22.6551 | 113 | -0.26 | 47 |
IV.MMO1.EHZ. | 2021-05-04T21:20:10.93 | 0.6 | undecidable | manual | S | 68 | 19.6692 | 116 | -0.36 | 47 |
IV.LNSS.HNZ. | 2021-05-04T21:20:09.22 | 0.3 | undecidable | manual | P | 191 | 26.0517 | 110 | -0.03 | 74 |
IV.CPGN.EHZ. | 2021-05-04T21:20:09.86 | 3.0 | undecidable | manual | P | 0.91 | 0 | |||
IV.GAVE.EHZ. | 2021-05-04T21:20:08.74 | 0.3 | undecidable | manual | P | 227 | 23.0547 | 112 | 0.05 | 74 |
IV.MC2.EHZ. | 2021-05-04T21:20:08.97 | 0.6 | undecidable | manual | S | 39 | 11.1777 | 130 | 0.17 | 49 |
IV.FDMO.HHZ. | 2021-05-04T21:20:08.94 | 0.3 | undecidable | manual | P | 357 | 22.6551 | 113 | 0.31 | 70 |
IV.CESI.HHE. | 2021-05-04T21:20:08.93 | 0.3 | undecidable | manual | P | 320 | 24.9528 | 111 | -0.12 | 73 |
IV.MMO1.EHZ. | 2021-05-04T21:20:07.92 | 0.3 | undecidable | manual | P | 68 | 19.6692 | 116 | -0.16 | 73 |
IV.NRCA.HHZ. | 2021-05-04T21:20:06.91 | 0.3 | undecidable | manual | S | 85 | 0.999 | 174 | -0.09 | 76 |
IV.MC2.EHZ. | 2021-05-04T21:20:06.90 | 0.1 | undecidable | manual | P | 39 | 11.1777 | 130 | 0.25 | 96 |
IV.NRCA.HHZ. | 2021-05-04T21:20:05.77 | 0.1 | undecidable | manual | P | 85 | 0.999 | 174 | 0.16 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNE. | ML:0.0 | 0.0002383192 | 0.1408 | AML | other | m | 2021-05-04T21:20:07.01 |
IV.NRCA.HNN. | ML:0.0 | 0.00020836515 | 0.1024 | AML | other | m | 2021-05-04T21:20:07.08 |
IV.NRCA.HHN. | ML:0.0 | 0.00018982145 | 0.1024 | AML | other | m | 2021-05-04T21:20:07.03 |
IV.NRCA.HHE. | ML:0.0 | 0.00025535195 | 0.1408 | AML | other | m | 2021-05-04T21:20:07.08 |
IV.GAVE.EHN. | ML:0.4 | 0.000013316765500000002 | 0.1664 | AML | other | m | 2021-05-04T21:20:12.74 |
IV.GAVE.EHE. | ML:0.5 | 0.000018090342499999998 | 0.1664 | AML | other | m | 2021-05-04T21:20:14.37 |
IV.FDMO.HHE. | ML:0.2 | 0.00000799044 | 0.128 | AML | other | m | 2021-05-04T21:20:12.45 |
IV.FDMO.HHN. | ML:-0.1 | 0.000005954068 | 0.3968 | AML | other | m | 2021-05-04T21:20:16.22 |