Earthquake Adriatico Centrale (MARE), Magnitude ML 2.8, 28 March 2021 time 00:05:21 (Timezone Italy)

A magnitude ML 2.8 earthquake occured in region: Adriatico Centrale (MARE), on

27-03-2021 23:05:21 (UTC)
28-03-2021 00:05:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5750, 16.1740 at 7 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.

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Display location by

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.

Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.

Shakemap

Not available maps for this sismic event.

Felt maps

Not available maps for this sismic event.

Locations history

Type	Magnitude	Date and Time (UTC)	Latitude	Longitude	Depth (km)	Published time (UTC)	Author	Location ID
Bulletin Rev1000	ML 2.8	2021-03-27 23:05:21	42.5747	16.1742	7	2021-07-12 16:55:09	Bollettino Sismico Italiano INGV	89793371
Reviewed Rev100	ML 2.9	2021-03-27 23:05:21	42.6483	16.1703	19	2021-03-27 23:17:02	Sala Sismica INGV-Roma	88536841

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2021-03-27 23:05:21 ± 0.28
Latitude	42.5747 ± 0.0144
Longitude	16.1742 ± 0.0183
Depth (km)	7 ± 3 (from location)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	1000 -> BULLETIN-INGV
Event type	earthquake
Origin ID	89793371

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	1597
Semi-minor axis of confidence ellipse (meter)	1208
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	33
Circular confidence region, given by single value of horizontal uncertainty (meter)	1600.0
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	254
Number of associated phases, regardless of their use for origin computation	61
Number of defining phases	55
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.27
Epicentral distance of station closest to the epicenter (degree)	0.00000
Epicentral distance of station farthest from the epicenter (degree)	2.05405
Number of stations at which the event was observed	51
Number of stations from which data was used for origin computation	45

Magnitudes information

ML:2.8

Field	Value
Value	2.8
Uncertainty	0.2
Num. used stations	35
Type of magnitude	ML
Reference to an origin	89793371
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2021-07-12 08:44:48

ML:2.9

Field	Value
Value	2.9
Uncertainty	0.2
Num. used stations	22
Type of magnitude	ML
Reference to an origin	88536841
Agency	INGV
Autore	Sala Sismica INGV-Roma
Time of creation (UTC)	2021-03-27 23:17:02

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Takeoff_angle	Residual	Weight
IV.EL6.EHZ.	2021-03-27T23:06:35.77	3.0	undecidable	manual	Sn				1.31	0
IV.MCIV.CHZ.	2021-03-27T23:06:26.42	3.0	undecidable	manual	Pg				10.85	0
IV.FIR.HHZ.	2021-03-27T23:06:25.81	3.0	negative	manual	Pn				3.5	0
IV.SEI.HHZ.	2021-03-27T23:06:19.92	3.0	undecidable	manual	Pn				-2.75	0
IV.ATPI.EHZ.	2021-03-27T23:06:10.89	3.0	positive	manual	Pn				0.84	0
IV.ATFO.HHZ.	2021-03-27T23:06:09.37	3.0	positive	manual	Pn				1.28	0
IV.PTRP.HHZ.	2021-03-27T23:05:57.73	0.6	undecidable	manual	P	182	228.0051	38	0.66	32
IV.VAGA.HHZ.	2021-03-27T23:05:55.08	0.6	undecidable	manual	P	232	205.239	38	0.84	34
IV.SGG.HHN.	2021-03-27T23:05:54.13	0.6	undecidable	manual	P	229	198.1572	38	0.77	37
OT.OT05.EHZ.	2021-03-27T23:05:54.24	1.0	undecidable	manual	S	205	111.8991	50	-0.4	29
IV.NOCI.HHZ.	2021-03-27T23:05:54.54	0.3	undecidable	manual	P	159	211.4328	38	-0.47	58
OT.OT07.EHE.	2021-03-27T23:05:54.65	0.6	undecidable	manual	S	200	112.1988	50	-0.07	62
OT.OT06.EHZ.	2021-03-27T23:05:53.75	0.6	undecidable	manual	S	206	109.6125	50	-0.27	60
IV.T0110.HHZ.	2021-03-27T23:05:53.40	0.6	undecidable	manual	P	260	200.1441	38	-0.2	43
IV.VITU.HHZ.	2021-03-27T23:05:53.54	0.6	undecidable	manual	P	220	200.244	38	-0.07	45
OT.OT12.EHZ.	2021-03-27T23:05:53.49	0.6	undecidable	manual	S	192	106.9152	50	0.19	61
OT.OT03.EHE.	2021-03-27T23:05:53.09	0.6	undecidable	manual	S	204	104.9172	50	0.31	60
IV.PTRJ.HNN.	2021-03-27T23:05:52.57	0.6	undecidable	manual	P	226	190.8645	38	0.12	46
IV.APRC.HHZ.	2021-03-27T23:05:52.29	0.6	undecidable	manual	S	210	104.4177	50	-0.37	60
IV.VULT.HHN.	2021-03-27T23:05:52.30	0.6	undecidable	manual	P	195	185.4699	38	0.51	44
IV.MIDA.HNZ.	2021-03-27T23:05:52.12	0.6	undecidable	manual	P	237	188.8665	38	-0.09	47
IV.RNI2.HNE.	2021-03-27T23:05:52.92	0.6	undecidable	manual	P	241	192.363	38	0.29	44
IV.VCEL.EHN.	2021-03-27T23:05:52.86	0.6	undecidable	manual	P	265	191.9634	38	0.28	45
IV.MRB1.HHZ.	2021-03-27T23:05:52.46	0.6	undecidable	manual	P	212	189.366	38	0.19	46
IV.SNAL.HNE.	2021-03-27T23:05:52.55	0.6	undecidable	manual	P	204	199.6446	38	-0.99	33
IV.INTR.HHE.	2021-03-27T23:05:52.73	0.6	undecidable	manual	P	252	196.4589	38	-0.41	42
IV.MSAG.HHZ.	2021-03-27T23:05:51.35	0.6	undecidable	manual	S	193	98.124	50	0.38	60
IV.AMUR.HHN.	2021-03-27T23:05:51.44	0.6	undecidable	manual	P	169	188.367	38	-0.7	40
IV.SGRT.HHZ.	2021-03-27T23:05:51.05	0.6	undecidable	manual	S	201	97.6245	50	0.22	62
IV.PSB1.HNE.	2021-03-27T23:05:51.75	0.6	undecidable	manual	P	217	187.4679	38	-0.27	46
IV.CAFE.HHN.	2021-03-27T23:05:51.41	1.0	undecidable	manual	P	205	188.2671	38	-0.72	20
IX.SSB3.HNE.02	2021-03-27T23:05:51.35	0.6	undecidable	manual	P	206	183.483	38	-0.17	48
IV.PALZ.HHN.	2021-03-27T23:05:51.60	0.6	undecidable	manual	P	186	181.7847	38	0.29	47
IV.LPEL.HHE.	2021-03-27T23:05:50.43	0.3	undecidable	manual	P	251	173.493	50	0.31	73
IV.SGTA.HNZ.	2021-03-27T23:05:50.56	1.0	undecidable	manual	P	203	173.0934	50	0.49	24
IV.BSSO.HHE.	2021-03-27T23:05:50.15	0.3	undecidable	manual	P	229	173.0934	50	0.09	77
IV.TST01.HHZ.	2021-03-27T23:05:50.64	0.3	undecidable	manual	P	239	173.1933	50	0.57	69
IV.SACR.HNN.	2021-03-27T23:05:50.98	0.6	undecidable	manual	P	223	178.0884	50	0.14	49
OT.OT15.EHZ.	2021-03-27T23:05:49.76	0.6	undecidable	manual	P	160	172.6938	50	-0.25	50
IV.TRIV.HHN.	2021-03-27T23:05:48.17	0.6	undecidable	manual	P	237	160.8168	50	0	55
IV.TST02.HHE.	2021-03-27T23:05:48.41	0.6	undecidable	manual	P	246	162.3153	50	0	55
IV.CAPA.HNE.	2021-03-27T23:05:48.04	0.6	undecidable	manual	P	191	159.8178	50	0.01	55
IV.MOCO.HNE.	2021-03-27T23:05:48.51	0.3	undecidable	manual	P	212	157.7199	50	0.81	67
IV.MRVN.HHZ.	2021-03-27T23:05:48.42	0.6	undecidable	manual	P	179	167.9097	50	-0.85	42
OT.OT14.EHZ.	2021-03-27T23:05:46.38	0.6	undecidable	manual	S	196	78.366	50	0.7	56
IV.CIGN.HHZ.	2021-03-27T23:05:45.92	0.6	undecidable	manual	P	226	146.0427	50	0.03	58
OT.OT11.EHE.	2021-03-27T23:05:44.99	0.6	undecidable	manual	P	211	136.3635	50	0.58	52
IV.TREM.HHZ.	2021-03-27T23:05:43.27	0.6	undecidable	manual	S	228	73.9704	50	-1.25	44
IV.MELA.HHZ.	2021-03-27T23:05:43.05	0.6	undecidable	manual	P	222	129.2706	50	-0.26	58
OT.OT12.EHZ.	2021-03-27T23:05:40.00	0.3	undecidable	manual	P	192	106.9152	50	0.14	93
OT.OT07.EHE.	2021-03-27T23:05:40.42	0.3	undecidable	manual	P	200	112.1988	50	-0.25	90
OT.OT03.EHE.	2021-03-27T23:05:39.46	0.6	undecidable	manual	P	204	104.9172	50	-0.1	63
IV.APRC.HHZ.	2021-03-27T23:05:39.69	0.3	undecidable	manual	P	210	104.4177	50	0.2	92
OT.OT06.EHZ.	2021-03-27T23:05:39.90	0.3	undecidable	manual	P	206	109.6125	50	-0.37	88
OT.OT04.EHE.	2021-03-27T23:05:39.55	0.3	undecidable	manual	P	207	106.7154	50	-0.28	91
OT.OT05.EHZ.	2021-03-27T23:05:39.93	0.3	undecidable	manual	P	205	111.8991	50	-0.7	79
IV.MSAG.HHZ.	2021-03-27T23:05:38.73	0.3	undecidable	manual	P	193	98.124	50	0.22	93
IV.SGRT.HHZ.	2021-03-27T23:05:38.16	0.3	undecidable	manual	P	201	97.6245	50	-0.27	92
OT.OT13.EHZ.	2021-03-27T23:05:36.03	0.6	undecidable	manual	P	180	76.9674	50	0.78	54
OT.OT14.EHZ.	2021-03-27T23:05:35.52	0.3	undecidable	manual	P	196	78.366	50	0.06	100
IV.TREM.HHZ.	2021-03-27T23:05:34.29	0.3	undecidable	manual	P	228	73.9704	50	-0.5	92

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
IV.TREM.HHE.	ML:2.7	0.0008475000000000001	1.54	AML	other	m	2021-03-27T23:05:48.84
IV.TREM.HNE.	ML:2.7	0.0008615	1.56	AML	other	m	2021-03-27T23:05:48.85
IV.TREM.HHN.	ML:2.9	0.00118217135	0.3968	AML	other	m	2021-03-27T23:05:48.00
IV.TREM.HNN.	ML:2.9	0.0011829999999999998	0.44	AML	other	m	2021-03-27T23:05:49.00
OT.OT13.EHE.	ML:3.1	0.001893674	0.2176	AML	other	m	2021-03-27T23:05:50.43
OT.OT13.EHN.	ML:3.3	0.00298	0.22	AML	other	m	2021-03-27T23:05:50.83
IV.SGRT.HHN.	ML:2.7	0.00050033755	0.2944	AML	other	m	2021-03-27T23:05:52.67
IV.SGRT.HHE.	ML:2.8	0.000718	1.74	AML	other	m	2021-03-27T23:05:52.90
IV.MSAG.HHN.	ML:2.7	0.0005851598	0.3456	AML	other	m	2021-03-27T23:05:54.43
IV.MSAG.HNN.	ML:3.1	0.0014067755	0.3456	AML	other	m	2021-03-27T23:05:54.43
IV.MSAG.HNE.	ML:2.7	0.0005785	0.9	AML	other	m	2021-03-27T23:05:55.03
IV.APRC.HHN.	ML:3.1	0.001145	0.28	AML	other	m	2021-03-27T23:05:55.32
OT.OT12.EHN.	ML:2.7	0.0004815574	0.4864	AML	other	m	2021-03-27T23:05:55.86
OT.OT12.EHE.	ML:2.6	0.0003821452	0.32	AML	other	m	2021-03-27T23:05:55.80
OT.OT05.EHN.	ML:2.9	0.0006841706	0.6272	AML	other	m	2021-03-27T23:05:58.23
IV.MSAG.HHE.	ML:2.4	0.00023649999999999998	0.28	AML	other	m	2021-03-27T23:05:57.32
IV.APRC.HHE.	ML:2.9	0.0007375000000000001	1.7	AML	other	m	2021-03-27T23:05:57.88
OT.OT05.EHE.	ML:2.8	0.0005625078	0.4736	AML	other	m	2021-03-27T23:05:58.28
IV.MELA.HHE.	ML:3.0	0.000669	0.34	AML	other	m	2021-03-27T23:06:01.59
IV.MELA.HHN.	ML:3.1	0.000778	0.34	AML	other	m	2021-03-27T23:06:02.19
IV.CIGN.HHN.	ML:2.4	0.00013700000000000002	0.54	AML	other	m	2021-03-27T23:06:06.60
IV.CIGN.HHE.	ML:2.4	0.00013000000000000002	0.46	AML	other	m	2021-03-27T23:06:08.84
IV.MRVN.HHE.	ML:2.4	0.00011	0.34	AML	other	m	2021-03-27T23:06:17.50
IV.MRVN.HHN.	ML:2.4	0.00009265000000000002	0.36	AML	other	m	2021-03-27T23:06:18.49
IV.PTRP.HHN.	ML:2.9	0.000188	0.58	AML	other	m	2021-03-27T23:06:33.47
IV.VAGA.HHN.	ML:2.6	0.000111	0.38	AML	other	m	2021-03-27T23:06:33.61
IV.NOCI.HHE.	ML:2.4	0.00007275022000000001	0.192	AML	other	m	2021-03-27T23:06:26.21
IV.VAGA.HHE.	ML:2.3	0.0000624	1.42	AML	other	m	2021-03-27T23:06:35.98
IV.PTRP.HHE.	ML:2.6	0.000097	0.48	AML	other	m	2021-03-27T23:06:36.02
IV.NOCI.HHN.	ML:2.6	0.000117	0.3	AML	other	m	2021-03-27T23:06:36.58
IV.APRC.HNE.	ML:2.8	0.0006851082	0.2944	AML	other	m	2021-03-27T23:05:57.88
IV.MELA.HNN.	ML:3.1	0.0008880295	0.3712	AML	other	m	2021-03-27T23:06:02.20
IV.MELA.HNE.	ML:3.0	0.0006889286999999999	0.4864	AML	other	m	2021-03-27T23:06:07.91
IV.VAGA.HNE.	ML:2.5	0.00009660943	0.4608	AML	other	m	2021-03-27T23:06:26.46
IV.VAGA.HNN.	ML:2.6	0.00012306335	0.3584	AML	other	m	2021-03-27T23:06:33.59

TDMT - Time Domain Moment Tensor

Not available TDMT solution for this seismic event.

Fault Plane solutions in the area

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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

Earthquake with magnitude of ML 2.8 on date 28-03-2021 and time 00:05:21 (Italy) in region Adriatico Centrale (MARE)