A magnitude ML 0.8 earthquake occured in region: 2 km S Norcia (PG), on
and geographic coordinates (lat, lon) 42.7720, 13.1020 at 11 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 | 3 | 4957 | 4957 |
Cascia | PG | 9 | 3217 | 8174 |
Preci | PG | 13 | 724 | 8898 |
Castelsantangelo sul Nera | MC | 14 | 281 | 9179 |
Accumoli | RI | 15 | 667 | 9846 |
Poggiodomo | PG | 15 | 117 | 9963 |
Arquata del Tronto | AP | 16 | 1178 | 11141 |
Cerreto di Spoleto | PG | 16 | 1075 | 12216 |
Cittareale | RI | 18 | 482 | 12698 |
Visso | MC | 18 | 1107 | 13805 |
Monteleone di Spoleto | PG | 18 | 599 | 14404 |
Sellano | PG | 19 | 1079 | 15483 |
Vallo di Nera | PG | 20 | 364 | 15847 |
Ussita | MC | 20 | 444 | 16291 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.8 | 2021-04-21 23:40:34 |
42.7718 | 13.1018 | 11 | 2021-07-12 16:55:12 |
Bollettino Sismico Italiano INGV | 90457571 |
Reviewed Rev100 |
ML 1.0 | 2021-04-21 23:40:34 |
42.7707 | 13.1143 | 10 | 2021-04-21 23:44:28 |
Sala Sismica INGV-Roma | 89341551 |
Field | Value |
---|---|
Time (UTC) | 2021-04-21 23:40:34 ± 0.05 |
Latitude | 42.7718 ± 0.0018 |
Longitude | 13.1018 ± 0.0037 |
Depth (km) | 11 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 90457571 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 256 |
Semi-minor axis of confidence ellipse (meter) | 201 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 292 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 260.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 116 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 21 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39750 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 89341551 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-21 23:44:28 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 90457571 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-05-24 16:06:14 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.LPEL.HHZ. | 2021-04-21T23:41:11.63 | 3.0 | undecidable | manual | S | 0.43 | 0 | |||
IV.TERO.HHZ. | 2021-04-21T23:40:48.53 | 0.3 | undecidable | manual | S | 112 | 44.1225 | 50 | -0.11 | 69 |
IV.CSP1.EHZ. | 2021-04-21T23:40:46.79 | 0.6 | undecidable | manual | S | 13 | 36.4413 | 50 | 0.2 | 45 |
IV.FDMO.HHZ. | 2021-04-21T23:40:44.49 | 0.3 | undecidable | manual | S | 358 | 29.3484 | 50 | -0.2 | 70 |
IV.RM33.EHZ. | 2021-04-21T23:40:44.94 | 0.6 | undecidable | manual | S | 162 | 30.5472 | 50 | -0.08 | 48 |
IV.SMA1.EHZ. | 2021-04-21T23:40:43.53 | 0.3 | undecidable | manual | S | 129 | 24.6531 | 50 | 0.09 | 71 |
IV.TERO.HHZ. | 2021-04-21T23:40:42.50 | 0.1 | undecidable | manual | P | 112 | 44.1225 | 50 | -0.09 | 92 |
IV.MMO1.EHZ. | 2021-04-21T23:40:42.84 | 0.6 | undecidable | manual | S | 52 | 23.1546 | 50 | -0.19 | 47 |
IV.GAVE.EHZ. | 2021-04-21T23:40:41.95 | 0.3 | undecidable | manual | S | 242 | 19.0698 | 119 | 0.04 | 72 |
IV.MC2.EHZ. | 2021-04-21T23:40:41.60 | 0.3 | undecidable | manual | S | 25 | 17.0718 | 122 | 0.29 | 71 |
IV.CSP1.EHZ. | 2021-04-21T23:40:41.47 | 1.0 | negative | manual | P | 13 | 36.4413 | 50 | 0.06 | 23 |
IV.LNSS.HHZ. | 2021-04-21T23:40:41.83 | 0.3 | undecidable | manual | S | 195 | 19.3695 | 119 | -0.19 | 72 |
IV.FDMO.HHZ. | 2021-04-21T23:40:40.22 | 0.1 | undecidable | manual | P | 358 | 29.3484 | 50 | -0.09 | 95 |
IV.RM33.EHZ. | 2021-04-21T23:40:40.54 | 1.0 | positive | manual | P | 162 | 30.5472 | 50 | 0.05 | 24 |
IV.MMO1.EHZ. | 2021-04-21T23:40:39.26 | 1.0 | undecidable | manual | P | 52 | 23.1546 | 50 | -0.09 | 24 |
IV.SMA1.EHZ. | 2021-04-21T23:40:39.68 | 1.0 | undecidable | manual | P | 129 | 24.6531 | 50 | 0.1 | 24 |
IV.T1299.HNN. | 2021-04-21T23:40:39.23 | 0.1 | undecidable | manual | P | 136 | 21.1677 | 50 | 0.18 | 94 |
IV.LNSS.HHZ. | 2021-04-21T23:40:38.88 | 0.6 | undecidable | manual | P | 195 | 19.3695 | 119 | 0.12 | 48 |
IV.NRCA.HHZ. | 2021-04-21T23:40:38.55 | 0.6 | undecidable | manual | S | 8 | 6.8931 | 147 | -0.21 | 47 |
IV.MC2.EHZ. | 2021-04-21T23:40:38.51 | 0.6 | negative | manual | P | 25 | 17.0718 | 122 | 0.15 | 48 |
IV.GAVE.EHZ. | 2021-04-21T23:40:38.82 | 0.1 | undecidable | manual | P | 242 | 19.0698 | 119 | 0.11 | 95 |
IV.NRCA.HHZ. | 2021-04-21T23:40:36.96 | 0.1 | undecidable | manual | P | 8 | 6.8931 | 147 | 0.08 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.1 | 0.000191 | 0.08 | AML | other | m | 2021-04-21T23:40:38.58 |
IV.NRCA.HHE. | ML:1.5 | 0.00042600000000000005 | 0.16 | AML | other | m | 2021-04-21T23:40:38.63 |
IV.LNSS.HHN. | ML:0.9 | 0.000055150000000000006 | 0.82 | AML | other | m | 2021-04-21T23:40:42.78 |
IV.GAVE.EHN. | ML:1.2 | 0.0001324 | 0.12 | AML | other | m | 2021-04-21T23:40:42.42 |
IV.GAVE.EHE. | ML:1.2 | 0.0001275 | 0.56 | AML | other | m | 2021-04-21T23:40:42.33 |
IV.LNSS.HHE. | ML:0.8 | 0.0000482 | 1.02 | AML | other | m | 2021-04-21T23:40:43.72 |
IV.TERO.HHN. | ML:0.8 | 0.00001835 | 0.06 | AML | other | m | 2021-04-21T23:40:48.99 |
IV.TERO.HHE. | ML:0.7 | 0.000012805 | 0.46 | AML | other | m | 2021-04-21T23:40:52.59 |
IV.SMA1.EHN. | ML:0.6 | 0.000025352140000000004 | 0.1792 | AML | other | m | 2021-04-21T23:40:44.31 |
IV.SMA1.EHE. | ML:0.7 | 0.000031002275 | 0.2432 | AML | other | m | 2021-04-21T23:40:46.36 |
IV.FDMO.HHE. | ML:0.3 | 0.000010890435 | 0.2816 | AML | other | m | 2021-04-21T23:40:44.58 |
IV.FDMO.HHN. | ML:0.3 | 0.0000100542605 | 0.2688 | AML | other | m | 2021-04-21T23:40:44.68 |
IV.RM33.EHN. | ML:0.3 | 0.0000111468035 | 0.1536 | AML | other | m | 2021-04-21T23:40:46.55 |
IV.RM33.EHE. | ML:0.5 | 0.000014179345 | 0.3456 | AML | other | m | 2021-04-21T23:40:46.30 |
IV.CSP1.EHE. | ML:1.1 | 0.000046318495 | 0.2944 | AML | other | m | 2021-04-21T23:40:47.28 |
IV.CSP1.EHN. | ML:1.0 | 0.000038949619 | 0.8192 | AML | other | m | 2021-04-21T23:40:45.79 |